PatchSiren cyber security CVE debrief

CVE-2025-9032 Gen Digital CVE debrief

A heap buffer out-of-bounds read vulnerability was discovered in the Avira Antivirus engine when scanning a malformed Windows PE file. This issue, tracked as CVE-2025-9032, may allow for Local Execution of Code or Denial-of-Service of the antivirus engine process. The vulnerability affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.98. The CVSS score for this vulnerability is 7.8, indicating a high severity.

Vendor: Gen Digital
Product: Avira Antivirus
CVSS: HIGH 7.8
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-06-12
Original CVE updated: 2026-06-12
Advisory published: 2026-06-12
Advisory updated: 2026-06-12

Who should care

Users of Avira Antivirus on Windows, macOS, and Linux systems should be aware of this vulnerability, especially if their engine builds are before 8.3.70.98.

Technical summary

The vulnerability is a heap buffer out-of-bounds read issue in the Avira Antivirus engine. It occurs when the engine scans a malformed Windows PE file, which could potentially lead to Local Execution of Code or Denial-of-Service of the antivirus engine process.

Defensive priority

High

Recommended defensive actions

Update Avira Antivirus engine to build 8.3.70.98 or later to mitigate this vulnerability.
Ensure all Avira Antivirus installations on Windows, macOS, and Linux systems are using the latest engine build.

Evidence notes

The CVE record and details were obtained from official sources.

Official resources

CVE-2025-9032 was published on 2026-06-12T23:16:30.977Z.