CVE-2026-81352CWE-122

CVE-2026-81352

High · published September 8, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
40.4
In the wild
Unconfirmed
What it is

Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00480 · 40.4th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-09-08T22:20Z
Affected products (2)
ProductVersionsFixed in
microsoft/web_media_extensions< 1.2.42.01.2.42.0
microsoft/web_media_extensions< 2.1.51.02.1.51.0
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81352 · [email protected]
EPSS history
Timeline
  • 10 SEP 03:18Z
    EPSS moved — → 0%
    epss
  • 08 SEP 17:18Z
    Web Media Extensions Remote Code Execution Vulnerability
    cvelistv5