Exposed dangerous method or function in Avast Premium Security - CVE-2026-5424

 

Exposed dangerous method or function in Avast Premium Security - CVE-2026-5424

Published: April 22, 2026


Vulnerability identifier: #VU126843
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-5424
CWE-ID: CWE-749
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to the exposure of a dangerous function within the Gen Self Protection driver. A local user can gain elevated privileges on the target system.


Affected software

Avast Premium Security

How to mitigate CVE-2026-5424

Install updates from vendor's website.

Avast Premium Security - update to 26.3

External References

Related Security Bulletins