Windows Malicious Software Removal Tool Elevation of Privilege Vulnerability

published 2023-01-10 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-25892

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits: 0; none known

Patch / fix

fixed in 1

Microsoft Windows Malicious Software Removal Tool 5.109.19957.1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-07-16)

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.3	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C
CNA	3.1	6.3	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected products

Microsoft Windows Malicious Software Removal Tool

Classification

Weakness

CWE-59 Improper Link Resolution Before File Access
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

msrc.microsoft.com /update-guide/vulnerability/CVE-2023-21725
vendor-advisory

Sources

CVE List CVE-2023-21725
NVD CVE-2023-21725

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary