Critical severity9.8CISA KEVNVD Advisory· Published Oct 14, 2025· Updated Jun 17, 2026
CVE-2025-59287
CVE-2025-59287
Description
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
20cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*range: <10.0.25398.1916
- (no CPE)range: 6.2.9200.0
- (no CPE)range: 6.3.9600.0
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*range: <10.0.14393.8524
- (no CPE)range: 10.0.14393.0
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*range: <10.0.17763.7922
- (no CPE)range: 10.0.17763.0
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*range: <10.0.20348.4297
- (no CPE)range: 10.0.20348.0
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*range: <10.0.26100.6905
- (no CPE)range: 10.0.26100.0
- Microsoft/Windows Server 2012 (Server Core installation)v5Range: 6.2.9200.0
- Microsoft/Windows Server 2012 R2 (Server Core installation)v5Range: 6.3.9600.0
- Microsoft/Windows Server 2016 (Server Core installation)v5Range: 10.0.14393.0
- Microsoft/Windows Server 2019 (Server Core installation)v5Range: 10.0.17763.0
- Microsoft/Windows Server 2022, 23H2 Edition (Server Core installation)v5Range: 10.0.25398.0
- Microsoft/Windows Server 2025 (Server Core installation)v5Range: 10.0.26100.0
Patches
Vulnerability mechanics
References
7- hawktrace.com/blog/CVE-2025-59287nvdExploitThird Party Advisory
- gist.github.com/hawktrace/880b54fb9c07ddb028baaae401bd3951nvdThird Party Advisory
- msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287nvdVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalognvdThird Party AdvisoryUS Government Resource
- www.vicarius.io/vsociety/posts/cve-2025-59287-detection-script-rce-vulnerability-in-windows-server-update-servicenvdThird Party Advisory
- www.vicarius.io/vsociety/posts/cve-2025-59287-mitigation-script-rce-vulnerability-in-windows-server-update-servicenvdMitigationThird Party Advisory
- www.bleepingcomputer.com/news/security/cisa-orders-feds-to-patch-windows-server-wsus-flaw-exploited-in-attacks/nvdPress/Media Coverage
News mentions
2- Risky Business #812 -- Alleged Trenchant exploit mole is ex-ASDRisky Business · Oct 29, 2025
- Risky Business #811 -- F5 is the tip of the crap software icebergRisky Business · Oct 22, 2025