CVE-2025-59287

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-10-24), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 100%CVSS: 9.8Exploit: cisa kev · ssvc active · Metasploit · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
100%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

October 14, 2025

Last Modified

November 12, 2025

Advisory Details (7)

Auto-updated Sep 17, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: microsoft, cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-59287
generic

CVE-2025-59287 · GitHub

https://gist.github.com/hawktrace/880b54fb9c07ddb028baaae401bd3951
generic🔴 Active Exploitation

CVE-2025-59287 Mitigation Script - RCE Vulnerability in Windows Server Update Service - vsociety

https://www.vicarius.io/vsociety/posts/cve-2025-59287-mitigation-script-rce-vulnerability-in-windows-server-update-service
generic🔴 Active Exploitation

CVE-2025-59287 Detection Script - RCE Vulnerability in Windows Server Update Service - vsociety

https://www.vicarius.io/vsociety/posts/cve-2025-59287-detection-script-rce-vulnerability-in-windows-server-update-service
generic🔴 Active Exploitation

CISA orders feds to patch Windows Server WSUS flaw used in attacks

https://www.bleepingcomputer.com/news/security/cisa-orders-feds-to-patch-windows-server-wsus-flaw-exploited-in-attacks/
generic

CVE-2025-59287 WSUS Remote Code Execution | HawkTrace

https://hawktrace.com/blog/CVE-2025-59287
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 91× in last 7d / 371× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 1,381 total refreshes for this CVE.

  1. 2026-09-21 03:22 UTCVendor advisory
  2. 2026-09-21 03:22 UTCGHSA enrichment
  3. 2026-09-20 23:30 UTCVendor advisory
  4. 2026-09-20 23:29 UTCGHSA enrichment
  5. 2026-09-20 19:37 UTCVendor advisory
  6. 2026-09-20 19:37 UTCGHSA enrichment
  7. 2026-09-20 15:44 UTCVendor advisory
  8. 2026-09-20 15:44 UTCGHSA enrichment
  9. 2026-09-20 11:52 UTCVendor advisory
  10. 2026-09-20 11:52 UTCGHSA enrichment
  11. 2026-09-20 07:59 UTCVendor advisory
  12. 2026-09-20 07:59 UTCGHSA enrichment
  13. 2026-09-20 04:06 UTCVendor advisory
  14. 2026-09-20 04:06 UTCGHSA enrichment
  15. 2026-09-20 00:14 UTCVendor advisory
  16. 2026-09-20 00:14 UTCGHSA enrichment
  17. 2026-09-19 20:21 UTCVendor advisory
  18. 2026-09-19 20:21 UTCGHSA enrichment
  19. 2026-09-19 16:29 UTCVendor advisory
  20. 2026-09-19 16:29 UTCGHSA enrichment
  21. 2026-09-19 12:37 UTCVendor advisory
  22. 2026-09-19 12:37 UTCGHSA enrichment
  23. 2026-09-19 08:44 UTCVendor advisory
  24. 2026-09-19 08:44 UTCGHSA enrichment
  25. 2026-09-19 04:52 UTCVendor advisory
Show 75 more
  1. 2026-09-19 04:52 UTCGHSA enrichment
  2. 2026-09-19 00:59 UTCVendor advisory
  3. 2026-09-19 00:59 UTCGHSA enrichment
  4. 2026-09-18 21:07 UTCVendor advisory
  5. 2026-09-18 21:07 UTCGHSA enrichment
  6. 2026-09-18 19:20 UTCCISA KEV update
  7. 2026-09-18 17:15 UTCVendor advisory
  8. 2026-09-18 17:15 UTCGHSA enrichment
  9. 2026-09-18 14:15 UTCCISA KEV update
  10. 2026-09-18 13:22 UTCVendor advisory
  11. 2026-09-18 13:22 UTCGHSA enrichment
  12. 2026-09-18 09:29 UTCVendor advisory
  13. 2026-09-18 09:29 UTCGHSA enrichment
  14. 2026-09-18 05:36 UTCVendor advisory
  15. 2026-09-18 05:36 UTCGHSA enrichment
  16. 2026-09-18 01:44 UTCVendor advisory
  17. 2026-09-18 01:44 UTCGHSA enrichment
  18. 2026-09-17 21:52 UTCVendor advisory
  19. 2026-09-17 21:52 UTCGHSA enrichment
  20. 2026-09-17 17:59 UTCVendor advisory
  21. 2026-09-17 17:59 UTCGHSA enrichment
  22. 2026-09-17 14:07 UTCVendor advisory
  23. 2026-09-17 14:07 UTCGHSA enrichment
  24. 2026-09-17 10:13 UTCVendor advisory
  25. 2026-09-17 10:13 UTCGHSA enrichment
  26. 2026-09-17 06:21 UTCVendor advisory
  27. 2026-09-17 06:20 UTCGHSA enrichment
  28. 2026-09-17 02:25 UTCVendor advisory
  29. 2026-09-17 02:24 UTCGHSA enrichment
  30. 2026-09-16 22:29 UTCVendor advisory
  31. 2026-09-16 22:29 UTCGHSA enrichment
  32. 2026-09-16 18:37 UTCVendor advisory
  33. 2026-09-16 18:37 UTCGHSA enrichment
  34. 2026-09-16 14:45 UTCVendor advisory
  35. 2026-09-16 14:45 UTCGHSA enrichment
  36. 2026-09-16 14:10 UTCCISA KEV update
  37. 2026-09-16 10:52 UTCVendor advisory
  38. 2026-09-16 10:52 UTCGHSA enrichment
  39. 2026-09-16 07:00 UTCVendor advisory
  40. 2026-09-16 07:00 UTCGHSA enrichment
  41. 2026-09-16 03:08 UTCVendor advisory
  42. 2026-09-16 03:08 UTCGHSA enrichment
  43. 2026-09-15 23:14 UTCVendor advisory
  44. 2026-09-15 23:14 UTCGHSA enrichment
  45. 2026-09-15 19:22 UTCVendor advisory
  46. 2026-09-15 19:22 UTCGHSA enrichment
  47. 2026-09-15 15:29 UTCVendor advisory
  48. 2026-09-15 15:29 UTCGHSA enrichment
  49. 2026-09-15 11:37 UTCVendor advisory
  50. 2026-09-15 11:37 UTCGHSA enrichment
  51. 2026-09-15 07:45 UTCVendor advisory
  52. 2026-09-15 07:45 UTCGHSA enrichment
  53. 2026-09-15 03:52 UTCEG score recompute
  54. 2026-09-15 03:52 UTCVendor advisory
  55. 2026-09-15 03:52 UTCGHSA enrichment
  56. 2026-09-15 00:00 UTCVendor advisory
  57. 2026-09-15 00:00 UTCGHSA enrichment
  58. 2026-09-14 20:07 UTCVendor advisory
  59. 2026-09-14 20:07 UTCGHSA enrichment
  60. 2026-09-14 19:24 UTCCISA KEV update
  61. 2026-09-14 16:14 UTCVendor advisory
  62. 2026-09-14 16:14 UTCGHSA enrichment
  63. 2026-09-14 12:22 UTCVendor advisory
  64. 2026-09-14 12:22 UTCGHSA enrichment
  65. 2026-09-14 08:29 UTCVendor advisory
  66. 2026-09-14 08:29 UTCGHSA enrichment
  67. 2026-09-14 04:37 UTCVendor advisory
  68. 2026-09-14 04:37 UTCGHSA enrichment
  69. 2026-09-14 00:45 UTCVendor advisory
  70. 2026-09-14 00:45 UTCGHSA enrichment
  71. 2026-09-13 20:52 UTCVendor advisory
  72. 2026-09-13 20:52 UTCGHSA enrichment
  73. 2026-09-13 17:00 UTCVendor advisory
  74. 2026-09-13 17:00 UTCGHSA enrichment
  75. 2026-09-13 13:07 UTCVendor advisory

Publicly available exploits

(10 references)

Working exploit code is in the public domain (10 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCLuemmelSec/CVE-2025-59287---WSUS-SCCM-RCE
    First seen Jan 16, 2026
    Open source ↗
  • GitHub PoCM507/CVE-2025-59287-PoC
    First seen Nov 16, 2025

    Unauthenticated RCE PoC in Microsoft Windows Server Update Service (WSUS) - CVE-2025-59287 & CVE-2023-35317

    Open source ↗
  • GitHub PoCQurtiDev/WSUS-CVE-2025-59287-RCE
    First seen Nov 1, 2025

    Exploit script written in C# to aid gaining a reverse shell on targets with Windows Server Update Service(WSUS) CVE-2025-59287.

    Open source ↗
  • GitHub PoC0x7556/CVE-2025-59287
    First seen Oct 30, 2025

    CVE-2025-59287 注入WolfShell内存马

    Open source ↗
  • GitHub PoCAdityaBhatt3010/CVE-2025-59287-When-your-patch-server-becomes-the-attack-vector
    First seen Oct 28, 2025

    CVE-2025-59287 — Critical unauthenticated RCE in Windows Server Update Services (WSUS) via unsafe deserialization of an AuthorizationCookie, enabling SYSTEM-level compromise and active exploitation; patch or isolate WSUS (ports 8530/8531) immediately.

    Open source ↗
  • GitHub PoCmrk336/Breaking-the-Update-Chain-Inside-CVE-2025-59287-and-the-WSUS-RCE-Threat
    First seen Oct 28, 2025

    CVE-2025-59287 is a critical RCE vulnerability in Windows Server Update Services (WSUS) caused by unsafe deserialization of untrusted data. It allows remote attackers to execute arbitrary code without authentication. Urgent patching is advised due to active exploitation.

    Open source ↗
  • GitHub PoCmubix/Find-WSUS
    First seen Oct 27, 2025

    Helps defenders find their WSUS configurations in the wake of CVE-2025-59287

    Open source ↗
  • GitHub PoCLupovis/Honeypot-for-CVE-2025-59287-WSUS
    First seen Oct 27, 2025

    Defensive PoC decoy for CVE-2025-59287 (WSUS) - emulates WSUS endpoints, captures request bodies and metadata, saves evidence for forensic analysis, and provides validation harness and detection rules.

    Open source ↗
  • GitHub PoCtecxx/CVE-2025-59287-WSUS
    First seen Oct 27, 2025

    powershell version of hawktrace POC exploit

    Open source ↗
  • GitHub PoCgarvitv14/CVE-2025-59287
    First seen Oct 25, 2025

    Working exploit (PoC) for CVE-2025-59287 — WSUS vulnerability. Featured on Vulners and DeepWiki.

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2025-59287?
CVE-2025-59287 is a critical vulnerability published on October 14, 2025. Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
When was CVE-2025-59287 disclosed?
CVE-2025-59287 was first published in the National Vulnerability Database on October 14, 2025, with the most recent update on November 12, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-59287 actively exploited?
Yes. CISA added CVE-2025-59287 to the Known Exploited Vulnerabilities catalog on October 24, 2025, affecting Microsoft Windows. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2025-59287?
CVE-2025-59287 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2025-59287?
CVE-2025-59287 affects Microsoft Windows. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2025-59287?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-59287, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2025-59287

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