Windows Server Update Service (WSUS) Remote Code Execution Vulnerability
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- Fix
- Fixed in 6.2.9200.25728, 6.3.9600.22826, 10.0.14393.8524, 10.0.17763.7922, 10.0.20348.4297, and 2 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Microsoft Windows Server Update Services (WSUS) is affected by this vulnerability, which allows an unauthenticated attacker on the network to run arbitrary code on the affected server. Successful exploitation would give the attacker control over the WSUS server, which manages software update distribution for other computers in an organization.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- Microsoft Windows Server 2012
From 6.2.9200.0 · fixed in 6.2.9200.25728
- Microsoft Windows Server 2012 (Server Core installation)
From 6.2.9200.0 · fixed in 6.2.9200.25728
- Microsoft Windows Server 2012 R2
From 6.3.9600.0 · fixed in 6.3.9600.22826
- Microsoft Windows Server 2012 R2 (Server Core installation)
From 6.3.9600.0 · fixed in 6.3.9600.22826
- Microsoft Windows Server 2016
From 10.0.14393.0 · fixed in 10.0.14393.8524
- Microsoft Windows Server 2016 (Server Core installation)
From 10.0.14393.0 · fixed in 10.0.14393.8524
- Microsoft Windows Server 2019
From 10.0.17763.0 · fixed in 10.0.17763.7922
- Microsoft Windows Server 2019 (Server Core installation)
From 10.0.17763.0 · fixed in 10.0.17763.7922
- Microsoft Windows Server 2022
From 10.0.20348.0 · fixed in 10.0.20348.4297
- Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
From 10.0.25398.0 · fixed in 10.0.25398.1916
- Microsoft Windows Server 2025
From 10.0.26100.0 · fixed in 10.0.26100.6905
- Microsoft Windows Server 2025 (Server Core installation)
From 10.0.26100.0 · fixed in 10.0.26100.6905