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 — 5 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 Jul 28, 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 57× in last 7d / 344× 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 721 total refreshes for this CVE.

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

Publicly available exploits

(5 references)

Working exploit code is in the public domain (1 Metasploit module) (3 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 ↗
  • Metasploitexploit/windows/http/wsus_deserialization_rce✓ verified
    First seen Oct 14, 2025

    Windows Server Update Service Deserialization Remote Code Execution

    Open source ↗
  • Nucleihttp/cves/2025/CVE-2025-59287.yaml
    First seen Jan 1, 2025

    Windows Server Update Service - Insecure Deserialization

    Open source ↗

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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