Summary
Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation More Likely. Customer action: Required.
Details
According to the CVSS metrics, successful exploitation of this vulnerability could lead to no loss of confidentiality (C:N), but could lead to major loss on integrity (I:H) and availability (A:H). What does that mean for this vulnerability?
This vulnerability does not allow disclosure of any confidential information, but could allow an attacker to delete data that could include data that results in the service being unavailable.
What privileges could be gained by an attacker who successfully exploited the vulnerability?
An attacker would be able to delete targeted files on a system.
Security updates
10.0.17763.6893 — https://support.microsoft.com/help/5052000
10.0.20348.3207 — https://support.microsoft.com/help/5051979
10.0.20348.3148 — https://support.microsoft.com/help/5052106
10.0.19044.5487 — https://support.microsoft.com/help/5051974
10.0.22621.4890 — https://support.microsoft.com/help/5051989
10.0.26100.3194 — https://support.microsoft.com/help/5051987
10.0.26100.3107 — https://support.microsoft.com/help/5052105
10.0.25398.1425 — https://support.microsoft.com/help/5051980
10.0.10240.20915 — https://support.microsoft.com/help/5052040
10.0.14393.7785 — https://support.microsoft.com/help/5052006
6.1.7601.27566 — https://support.microsoft.com/help/5052016
6.1.7601.27566 — https://support.microsoft.com/help/5052032
6.2.9200.25317 — https://support.microsoft.com/help/5052020
6.3.9600.22417 — https://support.microsoft.com/help/5052042
Vulnerabilities 1
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High 7.1
Windows Setup Files Cleanup Elevation of Privilege Vulnerability
Windows Setup Files Cleanup Elevation of Privilege Vulnerability
Revision history
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#1
Information published.
References
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CVE-2025-21419 Windows Setup Files Cleanup Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21419
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss