CVE-2021-34439
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)
2.6%
85.0th percentile
CISA KEV
Not listed
Weakness / dates
—
Published 2021-07-16 · modified 2026-08-10
Description
Microsoft Windows Media Foundation Remote Code Execution Vulnerability