CVE-2025-7018 PUBLISHED

Avira antivirus engine null pointer dereference when scanning a malformed PE file

Assigner: GEN
Reserved: 02.07.2025 Published: 12.06.2026 Updated: 12.06.2026

Null pointer dereference vulnerability in Avira Antivirus engine when scanning a malformed Windows PE file may allow Denial-of-Service of the antivirus engine process.

This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.64.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS Score: 5.5

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	Required	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Gen Digital
Product	Avira Antivirus
Versions	Default: affected affected from 0 to 8.3.70.64 (excl.)

Solutions

Upgrade to Avira scan engine build 8.3.70.64 or any later engine release. Builds at or above 8.3.70.64 include the fix.

Credits

Mike Zhang, an independent security researcher reporter

References

https://www.gendigital.com/us/en/contact-us/security-advisories/

Problem Types

CWE-476 NULL Pointer Dereference CWE

Impacts

CAPEC-125 Denial of Service