PT-2026-49050 · Ge Digital · Avira Antivir

Published 2026-06-12 · Updated 2026-06-12 · CVE-2026-6676

NVD

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-6676

Affected Products

Avira Antivir

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-6676 · Security Note
• https://gendigital.com/us/en/contact-us/security-advisories · Note