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CVE-2026-6676

7.8 HIGH

Heap buffer out-of-bounds write vulnerability in Avira Antivirus engine when scanning a malformed POSIX tar archive may allow Local Execu...

Published: 2026-06-12 · Last updated: 2026-06-12

Severity and scoring

CVSS
7.8 HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
CWE-787

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.

Source: NVD

References

Related CVEs

Same CWE

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  • CVE-2025-7004 Heap buffer out-of-bounds write vulnerability in Avast Antivirus when scanning a malformed Windows PE file may allow Local Execution of C... (7.8 HIGH)
  • CVE-2026-47965 Acrobat Reader versions 24.001.30365, 26.001.21651 and earlier are affected by an out-of-bounds write vulnerability that could result in ... (7.8 HIGH)