CVE-2025-59287
Windows Server Update Service (WSUS) Remote Code Execution Vulnerability
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
9.8
Windows Server Update Service (WSUS) Remote Code Execution Vulnerability
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
- Record
CVE-2025-59287- CVSS 3.1
- 9.8 Critical
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 - Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2025-34268
9.8
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
- Record
EUVD-2025-34268- CVSS 3.1
- 9.8 Critical
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-943j-4893-6rfq
9.8
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized...
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
- Record
GHSA-943j-4893-6rfq- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
CISA KEV No score
Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data Vulnerability
Microsoft Windows Server Update Service (WSUS) contains a deserialization of untrusted data vulnerability that allows for remote code execution.
- Record
CVE-2025-59287- Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
9.8
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
- Record
CVE-2025-59287- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
- microsoft windows
- microsoft windows server 2012
- microsoft windows server 2012 (server core installation)
- microsoft windows server 2012 r2
- microsoft windows server 2012 r2 (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
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Metasploit | Windows Server Update Service Deserialization Remote Code Execution | 2025-10-14 |
| PoC in GitHub | DaddyBigFish/CVE-2025-59287-hawktrace | 2025-10-25 |
| PoC in GitHub | garvitv14/CVE-2025-59287 | 2025-10-25 |
| PoC in GitHub | jiansiting/CVE-2025-59287 | 2025-10-25 |
| PoC in GitHub | 0xBruno/WSUSploit.NET | 2025-10-26 |
| PoC in GitHub | FurkanKAYAPINAR/CVE-2025-59287 | 2025-10-27 |
| PoC in GitHub | Lupovis/Honeypot-for-CVE-2025-59287-WSUS | 2025-10-27 |
| PoC in GitHub | RadzaRr/WSUSResponder | 2025-10-27 |
| PoC in GitHub | mubix/Find-WSUS | 2025-10-27 |
| PoC in GitHub | tecxx/CVE-2025-59287-WSUS | 2025-10-27 |
Show 15 moreShow less
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | AdityaBhatt3010/CVE-2025-59287-When-your-patch-server-becomes-the-attack-vector | 2025-10-28 |
| PoC in GitHub | esteban11121/WSUS-RCE-Mitigation-59287 | 2025-10-28 |
| PoC in GitHub | mrk336/Breaking-the-Update-Chain-Inside-CVE-2025-59287-and-the-WSUS-RCE-Threat | 2025-10-28 |
| PoC in GitHub | fsanzmoya/wsus_CVE-2025-59287 | 2025-10-29 |
| PoC in GitHub | 0x7556/CVE-2025-59287 | 2025-10-30 |
| PoC in GitHub | QurtiDev/WSUS-CVE-2025-59287-RCE | 2025-11-01 |
| PoC in GitHub | M507/CVE-2025-59287-PoC | 2025-11-16 |
| PoC in GitHub | Adel-hx0d/cve-2025-59287 | 2025-11-21 |
| PoC in GitHub | gud425/gud425.github.io | 2025-12-26 |
| PoC in GitHub | MaxymGorn/cve-2025-59287-exploit-poc | 2026-01-08 |
| PoC in GitHub | LuemmelSec/CVE-2025-59287---WSUS-SCCM-RCE | 2026-01-16 |
| PoC in GitHub | ross-ns/WSUS-CVE-2025-59287 | 2026-02-18 |
| PoC in GitHub | swoon69/CVE-2025-59287-Exercise-Use | 2026-03-09 |
| PoC in GitHub | owaset55-crypto/CVE-2025-59287 | 2026-07-23 |
| Nuclei | Windows Server Update Service - Insecure Deserialization |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation | ||
| exploits | ||
| exploits | ||
| first indexed | CVE List, EUVD, GitHub Advisories, CISA KEV, Metasploit, Nuclei, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-59287 is a critical vulnerability (CVSS 9.8) in Microsoft Windows, published October 14, 2025. CISA lists it as known to be exploited, since October 24, 2025. EUVD reports exploitation since October 24, 2025. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 100.0%, the 99th percentile. No source names a fixed version.
References
msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287
gist.github.com/hawktrace/880b54fb9c07ddb028baaae401bd3951
cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-59287
bleepingcomputer.com/news/security/cisa-orders-feds-to-patch-windows-server-wsus-flaw-exploited-in-attacks
hawktrace.com/blog/CVE-2025-59287
vicarius.io/vsociety/posts/cve-2025-59287-detection-script-rce-vulnerability-in-windows-server-update-service
vicarius.io/vsociety/posts/cve-2025-59287-mitigation-script-rce-vulnerability-in-windows-server-update-service
nvd.nist.gov/vuln/detail/CVE-2025-59287
github.com/advisories/GHSA-943j-4893-6rfq