Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Gen Digital | Avira Antivirus | < 8.3.27.12 | 8.3.27.12 |
Advisories 1
- WID-SEC-2026-1937 Avira AntiVirus: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 15, 2026