CVE-2026-20837
Medium
Elevated severity or exploit probability.
CVSS base
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.7%
51.0th percentile
CISA KEV
Not listed
Weakness / dates
CWE-122
Published 2026-01-13 · modified 2026-07-30
Description
Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.