CVE-2025-59287
Last modified
CVE-2025-59287 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.. CISA has confirmed active exploitation in the wild. EPSS estimates a 99.96% chance of exploitation in the next 30 days.
Description
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Server 2012 | All versions |
| Microsoft | Windows Server 2012 | r2 |
| Microsoft | Windows Server 2016 | < 10.0.14393.8524 |
| Microsoft | Windows Server 2019 | < 10.0.17763.7922 |
| Microsoft | Windows Server 2022 | < 10.0.20348.4297 |
| Microsoft | Windows Server 2022 23h2 | < 10.0.25398.1916 |
| Microsoft | Windows Server 2025 | < 10.0.26100.6905 |
References
- https://hawktrace.com/blog/CVE-2025-59287Exploit, Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-59287-mitigation-script-rce-vulnerability-in-windows-server-update-serviceMitigation, Third Party Advisory
- https://gist.github.com/hawktrace/880b54fb9c07ddb028baaae401bd3951Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-59287Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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