Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
290 results · page 1 of 6
Oct 19, 2026Uncontrolled recursion in the SVG parser and renderer of the Qt SVG module (QtSvg) in Qt Group Qt allows attackers to cause a denial of service (application craCVE-2026-8168 · Other software · qt · reported by a59d8014-47c4-4630-ab43-e1b13cbe58e3High 7.1
Uncontrolled recursion in the SVG parser and renderer of the Qt SVG module (QtSvg) in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted SVG file with deeply nested elements.
- Product
- qt
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcodereview.qt-project.orgcodereview.qt-project.org
Sep 18, 2026An improper authentication vulnerability has been reported to affect product.CVE-2024-38639 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 4.8
An improper authentication vulnerability has been reported to affect product. The remote attackers can then exploit the vulnerability to compromise the security of the system. QTS is not affected. We have already fixed the vulnerability in the following version:
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 10, 2026A command injection vulnerability has been reported to affect several QNAP operating system versions.CVE-2026-24719 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 6.1
A command injection vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to execute arbitrary commands. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3492 build 20260507 and later QuTS hero h5.2.9.3499 build 20260514 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 10, 2026A path traversal vulnerability has been reported to affect several QNAP operating system versions.CVE-2026-24717 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A path traversal vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to read the contents of unexpected files or system data. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3492 build 20260507 and later QuTS hero h5.2.9.3499 build 20260514 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3459 build 20260409 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 10, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2026-24716 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3492 build 20260507 and later QuTS hero h5.2.9.3499 build 20260514 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3459 build 20260409 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 10, 2026A command injection vulnerability has been reported to affect several QNAP operating system versions.CVE-2026-22893 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 8.6
A command injection vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to execute arbitrary commands. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3410 build 20260214 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3459 build 20260409 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 10, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-66281 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 6.9
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3410 build 20260214 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3397 build 20260206 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 10, 2026An integer overflow or wraparound vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-66280 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 5.1
An integer overflow or wraparound vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to compromise the security of the system. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3410 build 20260214 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3397 build 20260206 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 10, 2026A command injection vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-66279 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 8.6
A command injection vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to execute arbitrary commands. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3410 build 20260214 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3397 build 20260206 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 10, 2026A command injection vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-66273 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 8.6
A command injection vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to execute arbitrary commands. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3410 build 20260214 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3397 build 20260206 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 10, 2026A NULL pointer dereference vulnerability has been reported to affect QTS, QVP, QuTS cloud and QuTS hero.CVE-2025-62850 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 5.1
A NULL pointer dereference vulnerability has been reported to affect QTS, QVP, QuTS cloud and QuTS hero. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: QTS 5.2.9.3410 build 20260214 and later QVP 2.7.4 and later QuTS cloud c5.2.9.3468 build 20260413 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3459 build 20260409 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 9, 2026QuTS hero is not affected.CVE-2025-66276 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twCritical 9.2
QuTS hero is not affected. We have already fixed the vulnerability in the following version: QTS 5.2.7.3256 build 20250913 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 9, 2026QTS, QuTS hero, QuTScloud are not affected.CVE-2025-59382 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
QTS, QuTS hero, QuTScloud are not affected. We have already fixed the vulnerability in the following version:
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 9, 2026A buffer overflow vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-62858 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 5.1
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3410 build 20260214 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3397 build 20260206 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 9, 2026A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions.CVE-2026-41539 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 6.3
A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to bypass security mechanisms or read application data. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3492 build 20260507 and later QuTS hero h5.2.9.3499 build 20260514 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3500 build 20260520 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 11, 2026A command injection vulnerability has been reported to affect several QNAP operating system versions.CVE-2024-14026 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 2
A command injection vulnerability has been reported to affect several QNAP operating system versions. If an attacker gains local network access who have also gained a user account, they can then exploit the vulnerability to execute arbitrary commands. We have already fixed the vulnerability in the following versions: QTS 5.1.9.2954 build 20241120 and later QTS 5.2.3.3006 build 20250108 and later QuTS hero h5.1.9.2954 build 20241120 and later QuTS hero h5.2.3.3006 build 20250108 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 11, 2026A link following vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-66277 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twCritical 9.2
A link following vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to traverse the file system to unintended locations. We have already fixed the vulnerability in the following versions: QTS 5.2.8.3350 build 20251216 and later QuTS hero h5.3.2.3354 build 20251225 and later QuTS hero h5.2.8.3350 build 20251216 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 11, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-66274 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 5.1
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3410 build 20260214 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.2.3354 build 20251225 and later QuTS hero h6.0.0.3397 build 20260206 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 11, 2026A use of uninitialized variable vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-58466 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A use of uninitialized variable vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to denial of service conditions, or modify control flow in unexpected ways. We have already fixed the vulnerability in the following versions: QTS 5.2.8.3332 build 20251128 and later QuTS hero h5.2.8.3321 build 20251117 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 11, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-47205 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 5.1
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.8.3332 build 20251128 and later QuTS hero h5.2.8.3321 build 20251117 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026An exposure of sensitive system information to an unauthorized control sphere vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-9110 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 2.7
An exposure of sensitive system information to an unauthorized control sphere vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to read application data. We have already fixed the vulnerability in the following versions: QTS 5.2.8.3332 build 20251128 and later QuTS hero h5.2.8.3321 build 20251117 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A buffer overflow vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-62852 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: QTS 5.2.8.3332 build 20251128 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A path traversal vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-59381 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 6.9
A path traversal vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to read the contents of unexpected files or system data. We have already fixed the vulnerability in the following versions: QTS 5.2.8.3332 build 20251128 and later QuTS hero h5.2.8.3321 build 20251117 and later QuTS hero h5.3.2.3354 build 20251225 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A path traversal vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-59380 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 4.6
A path traversal vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to read the contents of unexpected files or system data. We have already fixed the vulnerability in the following versions: QTS 5.2.8.3332 build 20251128 and later QuTS hero h5.2.8.3321 build 20251117 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A buffer overflow vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-48721 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: QTS 5.2.8.3332 build 20251128 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026An allocation of resources without limits or throttling vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-57705 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 4.6
An allocation of resources without limits or throttling vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to prevent other systems, applications, or processes from accessing the same type of resource. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026An out-of-bounds read vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-54166 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 4.6
An out-of-bounds read vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026An out-of-bounds read vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-54165 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 4.6
An out-of-bounds read vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026An out-of-bounds read vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-54164 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 4.6
An out-of-bounds read vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-53596 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A buffer overflow vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-53593 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-53592 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.3
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-53591 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data or modify memory. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-53590 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: QTS 5.2.7.3256 build 20250913 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-53589 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-53414 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-53405 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A buffer overflow vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-52872 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.3
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.0.3192 build 20250716 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A buffer overflow vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-52864 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.3
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.0.3192 build 20250716 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A buffer overflow vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-52863 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.3
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.0.3192 build 20250716 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-52431 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-52430 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-52426 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.2
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026An allocation of resources without limits or throttling vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-47208 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 4.9
An allocation of resources without limits or throttling vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to prevent other systems, applications, or processes from accessing the same type of resource. We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 2, 2026A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-44013 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twLow 1.3
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 15, 2025An SQL injection vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-62849 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 5.2
An SQL injection vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to execute unauthorized code or commands. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3297 build 20251024 and later QuTS hero h5.2.7.3297 build 20251024 and later QuTS hero h5.3.1.3292 build 20251024 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 15, 2025A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-62848 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 8.1
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3297 build 20251024 and later QuTS hero h5.2.7.3297 build 20251024 and later QuTS hero h5.3.1.3292 build 20251024 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 15, 2025An improper neutralization of argument delimiters in a command vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-62847 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 6.6
An improper neutralization of argument delimiters in a command vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to alter execution logic. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3297 build 20251024 and later QuTS hero h5.2.7.3297 build 20251024 and later QuTS hero h5.3.1.3292 build 20251024 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 15, 2025An authentication bypass by spoofing vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-59385 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 8.1
An authentication bypass by spoofing vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to access resources which are not otherwise accessible without proper authentication. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3297 build 20251024 and later QuTS hero h5.2.7.3297 build 20251024 and later QuTS hero h5.3.1.3292 build 20251024 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 3, 2025A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions.CVE-2025-53407 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 5.1
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data or modify memory. We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later
- Product
- QTS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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