CVE-2023-24955

CRITICALNVD 7.29.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2024-03-26), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.2 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
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 85%CVSS: 7.2Exploit: cisa kev · ssvc active · kev ransomware · 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.

Microsoft SharePoint Server Remote Code Execution Vulnerability

CVSS v3
7.2
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
85%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

May 9, 2023

Last Modified

October 28, 2025

Advisory Details (2)

Auto-updated Jun 11, 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-2023-24955
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-2023-24955

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 104× in last 7d / 404× 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 1,223 total refreshes for this CVE.

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

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCformer-farmer/CVE-2023-24955-PoC
    First seen Dec 28, 2023

    Exploit for Microsoft SharePoint 2019

    Open source ↗
  • Metasploitexploit/windows/http/sharepoint_dynamic_proxy_generator_auth_bypass_rce✓ verified
    First seen May 1, 2023

    Sharepoint Dynamic Proxy Generator Unauth RCE

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2023-24955?
CVE-2023-24955 is a critical vulnerability published on May 9, 2023. Microsoft SharePoint Server Remote Code Execution Vulnerability
When was CVE-2023-24955 disclosed?
CVE-2023-24955 was first published in the National Vulnerability Database on May 9, 2023, with the most recent update on October 28, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-24955 actively exploited?
Yes. CISA added CVE-2023-24955 to the Known Exploited Vulnerabilities catalog on March 26, 2024, affecting Microsoft SharePoint Server. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2023-24955?
CVE-2023-24955 has a CVSS v3 base score of 7.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2023-24955?
CVE-2023-24955 affects Microsoft SharePoint Server. 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-2023-24955?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-24955, 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-2023-24955

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