CVE-2025-9033CWE-125

Avira antivirus engine heap buffer OOB read when scanning a malformed PDF file (variant 3)

High · published June 12, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
1.8
In the wild
Unconfirmed
What it is

Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed PDF file 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 8.3.70.76.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00122 · 1.8th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-06-12T22:15Z
EPSS history
Timeline
  • 12 JUN 22:15Z
    Avira antivirus engine heap buffer OOB read when scanning a malformed PDF file (variant 3)
    cvelistv5