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.
13 results
Jun 12, 2026Heap buffer out-of-bounds write vulnerability in Avira Antivirus engine when scanning a malformed POSIX tar archive may allow Local Execution of Code or Denial-CVE-2026-6676 · Other software · Gen Digital · reported by security@nortonlifelock.comHigh 7.8
Heap buffer out-of-bounds write vulnerability in Avira Antivirus engine when scanning a malformed POSIX tar archive may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.27.12.
- Product
- Avira Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 12, 2026Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed PDF file may allow Local Execution of Code or Denial-of-ServiceCVE-2025-9033 · Other software · Gen Digital · reported by security@nortonlifelock.comHigh 7.8
Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed PDF file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.76.
- Product
- Avira Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 12, 2026Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed Windows PE file may allow Local Execution of Code or Denial-of-CVE-2025-9032 · Other software · Gen Digital · reported by security@nortonlifelock.comHigh 7.8
Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed Windows PE file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.98.
- Product
- Avira Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 12, 2026Heap buffer out-of-bounds write vulnerability due to integer overflow in Avira Antivirus engine when scanning a malformed MS-DOS executable file may allow LocalCVE-2025-14098 · Other software · Gen Digital · reported by security@nortonlifelock.comHigh 7.8
Heap buffer out-of-bounds write vulnerability due to integer overflow in Avira Antivirus engine when scanning a malformed MS-DOS executable file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.104.
- Product
- Avira Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 12, 2026Null pointer dereference vulnerability in Avira Antivirus engine when scanning a malformed Windows PE file may allow Denial-of-Service of the antivirus engine pCVE-2025-7018 · Other software · Gen Digital · reported by security@nortonlifelock.comMedium 5.5
Null pointer dereference vulnerability in Avira Antivirus engine when scanning a malformed Windows PE file may allow Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.64.
- Product
- Avira Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 12, 2026Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed Windows MSI file may allow Local Execution of Code or Denial-ofCVE-2025-7017 · Other software · Gen Digital · reported by security@nortonlifelock.comHigh 7.8
Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed Windows MSI file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.56.
- Product
- Avira Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 12, 2026Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed PDF file may allow Local Execution of Code or Denial-of-ServiceCVE-2025-7003 · Other software · Gen Digital · reported by security@nortonlifelock.comHigh 7.8
Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed PDF file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.56.
- Product
- Avira Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 12, 2026Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed PDF file may allow Local Execution of Code or Denial-of-ServiceCVE-2025-7002 · Other software · Gen Digital · reported by security@nortonlifelock.comHigh 7.8
Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed PDF file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.68.
- Product
- Avira Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 1, 2025Heap-based Buffer Overflow, Out-of-bounds Read vulnerability in Avira Antivirus engine when scanning a malformed file may allow Local Execution of Code or DeniaCVE-2025-8351 · Other software · Gen Digital · reported by security@nortonlifelock.comHigh 7.8
Heap-based Buffer Overflow, Out-of-bounds Read vulnerability in Avira Antivirus engine when scanning a malformed file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.98.
- Product
- Avira Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 19, 2023A vulnerability within the Avira network protection feature allowed an attacker with local execution rights to cause an overflow.CVE-2023-1900 · Other software · AVIRA · reported by security@nortonlifelock.comHigh 7.8
A vulnerability within the Avira network protection feature allowed an attacker with local execution rights to cause an overflow. This could corrupt the data on the heap and lead to a denial-of-service situation. Issue was fixed with Endpointprotection.exe version 1.0.2303.633
- Product
- Avira Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupport.norton.comsupport.norton.com
Apr 26, 2020Avira Antivirus before 5.0.2003.1821 on Windows allows privilege escalation or a denial of service via abuse of a symlink.CVE-2020-12254 · Other software · Avira · reported by MITREHigh 7.8
Avira Antivirus before 5.0.2003.1821 on Windows allows privilege escalation or a denial of service via abuse of a symlink.
- Product
- Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordweb.archive.orgsupport.avira.com
Jul 27, 2017Avira Antivirus engine versions before 8.3.36.60 allow remote code execution as NT AUTHORITY\SYSTEM via a section header with a very large relative virtual addrCVE-2016-10402 · Other software · Avira · reported by MITREHigh 7.8
Avira Antivirus engine versions before 8.3.36.60 allow remote code execution as NT AUTHORITY\SYSTEM via a section header with a very large relative virtual address in a PE file, causing an integer overflow and heap-based buffer underflow.
- Product
- Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurityfocus.combugs.chromium.org
Oct 14, 2005Multiple interpretation error in unspecified versions of Avira Antivirus allows remote attackers to bypass virus detection via a malicious executable in a speciCVE-2005-3219 · Other software · Avira · reported by MITREMedium 5.1
Multiple interpretation error in unspecified versions of Avira Antivirus allows remote attackers to bypass virus detection via a malicious executable in a specially crafted RAR file with malformed central and local headers, which can still be opened by products such as Winrar and PowerZip, even though they are rejected as corrupted by Winzip and BitZipper.
- Product
- Antivir Personal
- 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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