# CVE-2025-59287: Windows Server Update Service (WSUS) Remote Code Execution Vulnerability

> CVE-2025-59287: Windows Server Update Service (WSUS) Remote Code Execution Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2025-59287
Last updated: 2026-06-17T09:45:52Z

- Published: 2025-10-14 17:01 UTC · Updated: 2026-06-17 09:45 UTC · Assigner: microsoft
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
- EPSS: 100.0%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-10-24, federal due date 2025-11-14, ransomware use: Unknown
- CWE: CWE-502

## Description

Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.

## CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- Microsoft: Windows Server 2012
- Microsoft: Windows Server 2012 R2
- Microsoft: Windows Server 2012 R2 (Server Core installation)
- Microsoft: Windows Server 2012 (Server Core installation)
- Microsoft: Windows Server 2016
- Microsoft: Windows Server 2016 (Server Core installation)
- Microsoft: Windows Server 2019
- Microsoft: Windows Server 2019 (Server Core installation)
- Microsoft: Windows Server 2022
- Microsoft: Windows Server 2022, 23H2 Edition (Server Core installation)
- Microsoft: Windows Server 2025
- Microsoft: Windows Server 2025 (Server Core installation)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-59287)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-59287)
- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-59287 · Markdown: https://rewindex.com/cve/CVE-2025-59287.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-59287 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:04:40.903Z