CVE-2025-8351

CVE-2025-8351 describes a heap-based buffer overflow and out-of-bounds read in antivirus engines (Avira/Avast family) when scanning malformed files. Affected versions are engine builds before 8.3.70.98 and the impact can be local code execution or denial-of-service of the antivirus engine process...

CVE-2025-8351 Avira antivirus engine heap buffer OOB read when scanning a malformed file

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...