known ransomware use

Microsoft Windows Transaction Manager Privilege Escalation Vulnerability

Added to KEV
2022-03-15
Federal due date
2022-04-05
Vendor
Microsoft
Product
Windows
EPSS
98.8th percentile (score 0.723, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Known
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2017-0101

CISA short description

A privilege escalation vulnerability exists when the Windows Transaction Manager improperly handles objects in memory.

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.