Microsoft WinVerifyTrust function Remote Code Execution

Added to KEV
2022-01-10
Federal due date
2022-07-10
Vendor
Microsoft
Product
WinVerifyTrust function
EPSS
98.9th percentile (score 0.758, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2013-3900

CISA short description

A remote code execution vulnerability exists in the way that the WinVerifyTrust function handles Windows Authenticode signature verification for PE files.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.