CVE-2023-36874

CRITICALNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-07-11), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 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
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 43%CVSS: 7.8Exploit: cisa kev · ssvc active · Metasploit · epss top5pct · public exploitExposed: 0

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

Windows Error Reporting Service Elevation of Privilege Vulnerability

CVSS v3
7.8
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
43%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

July 11, 2023

Last Modified

October 28, 2025

Advisory Details (3)

Auto-updated Jun 3, 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-2023-36874
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-2023-36874
generic

Packet Storm

http://packetstormsecurity.com/files/174843/Microsoft-Error-Reporting-Local-Privilege-Elevation.html

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 66× in last 7d / 391× 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 801 total refreshes for this CVE.

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

Publicly available exploits

(5 references)

Working exploit code is in the public domain (1 Metasploit module) (4 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCOctoberfest7/CVE-2023-36874_BOF
    First seen Aug 24, 2023

    Weaponized CobaltStrike BOF for CVE-2023-36874 Windows Error Reporting LPE

    Open source ↗
  • GitHub PoCWh04m1001/CVE-2023-36874
    First seen Aug 23, 2023
    Open source ↗
  • GitHub PoCcrisprss/CVE-2023-36874
    First seen Aug 22, 2023

    CVE-2023-36874 Proof of Concept

    Open source ↗
  • GitHub PoCd0rb/CVE-2023-36874
    First seen Aug 20, 2023

    This repository contains a proof-of-concept exploit written in C++ that demonstrates the exploitation of a vulnerability affecting the Windows Error Reporting (WER) component.

    Open source ↗
  • Metasploitexploit/windows/local/win_error_cve_2023_36874✓ verified
    First seen Jul 11, 2023

    Microsoft Error Reporting Local Privilege Elevation Vulnerability

    Open source ↗

Frequently asked(6)

What is CVE-2023-36874?
CVE-2023-36874 is a critical vulnerability published on July 11, 2023. Windows Error Reporting Service Elevation of Privilege Vulnerability
When was CVE-2023-36874 disclosed?
CVE-2023-36874 was first published in the National Vulnerability Database on July 11, 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-2023-36874 actively exploited?
Yes. CISA added CVE-2023-36874 to the Known Exploited Vulnerabilities catalog on July 11, 2023, affecting Microsoft Windows. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2023-36874?
CVE-2023-36874 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2023-36874?
CVE-2023-36874 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-2023-36874?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-36874, 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-2023-36874

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