Heap-based buffer overflow in Web Media Extensions - CVE-2026-81352
Published: September 8, 2026
Vulnerability identifier: #VU147941
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-81352
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Web Media Extensions. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Web Media Extensions
How to mitigate CVE-2026-81352
Install updates from vendor's website.
Web Media Extensions - addressed in versions 1.2.42.0, 2.1.51.0