CVE-2026-6676
HIGH
NVD
CVSS Score
7.8
Severity
HIGH
Published
Jun 12, 2026
Vendor
unknown
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.