CVE-2026-6676
High · 7.8CVSS
7.8
EPSS
0.2%
Published
Jun 12, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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