VulnerabilityModified

CVE-2021-34439

Microsoft Windows Media Foundation Remote Code Execution Vulnerability

HIGH 7.8EPSS 2.65%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Microsoft Windows Media Foundation Remote Code Execution Vulnerability

CVSS 3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 2.65% probability · 85th percentile
CISA KEV: Not listed
Affected: microsoft/windows 10 · microsoft/windows server 2016
Source: secure@microsoft.com

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34439
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34439Patch, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.