CVE-2026-56189CWE-122

Microsoft Windows Media Foundation Remote Code Execution Vulnerability

High · published July 14, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
32.2
In the wild
Unconfirmed
What it is

Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00393 · 32.2th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-07-14T17:09Z
EPSS history
Timeline
  • 14 JUL 17:09Z
    Microsoft Windows Media Foundation Remote Code Execution Vulnerability
    cvelistv5