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.
17 results
Mar 20, 2026A missing authentication for critical function vulnerability has been reported to affect QVR Pro.CVE-2026-22898 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twCritical 9.3
A missing authentication for critical function vulnerability has been reported to affect QVR Pro. The remote attackers can then exploit the vulnerability to gain access to the system. We have already fixed the vulnerability in the following version: QVR Pro 2.7.4.14 and later
- Product
- QVR Pro
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 6, 2024An unquoted search path or element vulnerability has been reported to affect QVR Smart Client.CVE-2022-27592 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 6.7
An unquoted search path or element vulnerability has been reported to affect QVR Smart Client. If exploited, the vulnerability could allow local authenticated administrators to execute unauthorized code or commands via unspecified vectors. We have already fixed the vulnerability in the following version: Windows 10 SP1, Windows 11, Mac OS, and Mac M1: QVR Smart Client 2.4.0.0570 and later
- Product
- QVR Smart Client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 7, 2023An insertion of sensitive information into Log file vulnerability has been reported to affect product.CVE-2022-27599 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 6.7
An insertion of sensitive information into Log file vulnerability has been reported to affect product. If exploited, the vulnerability possibly provides local authenticated administrators with an additional, less-protected path to acquiring the information via unspecified vectors. We have already fixed the vulnerability in the following version: Windows 10 SP1, Windows 11, Mac OS, and Mac M1: QVR Pro Client 2.3.0.0420 and later
- Product
- QVR Pro Client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 5, 2022We have already fixed this vulnerability in the following versions of QVR: QVR 5.1.6 build 20220401 and laterCVE-2022-27588 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twCritical 9.8
We have already fixed this vulnerability in the following versions of QVR: QVR 5.1.6 build 20220401 and later
- Product
- QVR
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 5, 2022A path traversal vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, QTS, QVR Pro Appliance.CVE-2021-38693 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twMedium 5.3
A path traversal vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, QTS, QVR Pro Appliance. If exploited, this vulnerability allows attackers to read the contents of unexpected files and expose sensitive data. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, QTS, QVR Pro Appliance: QuTScloud c5.0.1.1949 and later QuTS hero h5.0.0.1949 build 20220215 and later QuTS hero h4.5.4.1951 build 20220218 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later
- Product
- QuTScloud
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 13, 2022A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard.CVE-2021-38692 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 8.1
A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QVR Elite, QVR Pro, QVR Guard: QuTS hero h5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QuTS hero h4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 4.5.4: QVR Guard 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Guard 2.1.3.0 (2021/12/06) and later
- Product
- QVR Elite
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 13, 2022A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard.CVE-2021-38691 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 8.1
A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QVR Elite, QVR Pro, QVR Guard: QuTS hero h5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QuTS hero h4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 4.5.4: QVR Guard 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Guard 2.1.3.0 (2021/12/06) and later
- Product
- QVR Elite
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 13, 2022A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard.CVE-2021-38690 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 8.1
A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QVR Elite, QVR Pro, QVR Guard: QuTS hero h5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QuTS hero h4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 4.5.4: QVR Guard 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Guard 2.1.3.0 (2021/12/06) and later
- Product
- QVR Elite
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 13, 2022A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard.CVE-2021-38689 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 8.1
A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QVR Elite, QVR Pro, QVR Guard: QuTS hero h5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QuTS hero h4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 4.5.4: QVR Guard 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Guard 2.1.3.0 (2021/12/06) and later
- Product
- QVR Elite
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 13, 2022A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard.CVE-2021-38682 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 8.1
A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QVR Elite, QVR Pro, QVR Guard: QuTS hero h5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QuTS hero h4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 4.5.4: QVR Guard 2.1.3.0 and later QTS 5.0.0: QVR Guard 2.1.3.0 and later
- Product
- QVR Elite
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 26, 2021An improper authentication vulnerability has been reported to affect QNAP device, VioStor.CVE-2021-38686 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 8.8
An improper authentication vulnerability has been reported to affect QNAP device, VioStor. If exploited, this vulnerability allows attackers to compromise the security of the system. We have already fixed this vulnerability in the following versions of QVR: QVR FW 5.1.6 build 20211109 and later
- Product
- QVR
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 26, 2021A command injection vulnerability has been reported to affect QNAP device, VioStor.CVE-2021-38685 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twCritical 9.8
A command injection vulnerability has been reported to affect QNAP device, VioStor. If exploited, this vulnerability allows remote attackers to run arbitrary commands. We have already fixed this vulnerability in the following versions of QVR: QVR FW 5.1.6 build 20211109 and later
- Product
- QVR
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 20, 2021Possible buffer over read due to lack of data length check in QVR Service configuration in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, SnapdraCVE-2021-1985 · Computers, phones & browsers · Qualcomm, Inc. · reported by product-security@qualcomm.comHigh 8.4
Possible buffer over read due to lack of data length check in QVR Service configuration in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Wearables
- Product
- Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Wearables
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordqualcomm.comqualcomm.com
Sep 30, 2021A command injection vulnerability has been reported to affect QNAP device running QVR.CVE-2021-34352 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 7.2
A command injection vulnerability has been reported to affect QNAP device running QVR. If exploited, this vulnerability could allow remote attackers to run arbitrary commands. We have already fixed this vulnerability in the following versions of QVR: QVR 5.1.5 build 20210902 and later
- Product
- QVR
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 26, 2021A command injection vulnerability has been reported to affect QNAP device running QVR.CVE-2021-34351 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twCritical 9.8
A command injection vulnerability has been reported to affect QNAP device running QVR. If exploited, this vulnerability could allow remote attackers to run arbitrary commands. We have already fixed this vulnerability in the following versions of QVR: QVR 5.1.5 build 20210803 and later
- Product
- QVR
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 26, 2021A command injection vulnerability has been reported to affect QNAP device running QVR.CVE-2021-34349 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twHigh 7.2
A command injection vulnerability has been reported to affect QNAP device running QVR. If exploited, this vulnerability could allow remote attackers to run arbitrary commands. We have already fixed this vulnerability in the following versions of QVR: QVR 5.1.5 build 20210803 and later
- Product
- QVR
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 26, 2021A command injection vulnerability has been reported to affect QNAP device running QVR.CVE-2021-34348 · Network & remote access · QNAP Systems Inc. · reported by security@qnapsecurity.com.twCritical 9.8
A command injection vulnerability has been reported to affect QNAP device running QVR. If exploited, this vulnerability could allow remote attackers to run arbitrary commands. We have already fixed this vulnerability in the following versions of QVR: QVR 5.1.5 build 20210803 and later
- Product
- QVR
- 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.
Weekly security brief
The flaws that hit local websites, every Friday.
One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.
Tell us what you're building.
A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.
Not ready to talk yet? Run the free website check and see what Google sees.