Windows Error Reporting Service Elevation of Privilege Vulnerability

cisa required action Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

1. 2023-06-30 Found exploited as a 0-day (Project Zero)
2. 2023-07-11 0-day patched (Project Zero)
3. 2023-07-11 First public exploit (Metasploit exploit/windows/local/win_error_cve_2023_36874)
4. 2023-07-11 Added to CISA KEV
5. 2023-07-11 Published
6. 2023-08-01 CISA patch deadline
7. 2025-01-27 CISA SSVC: exploitation active

Added

3 y ago (2023-07-11)

Patch by

2023-08-01 (3 y ago)

Ransomware

Not known

Required action

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Vendor, product

Microsoft, Windows

CISA name

Microsoft Windows Error Reporting Service Privilege Escalation Vulnerability

Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.

Found

2023-06-30

Patched

2023-07-11

Details

project zero tracker

Exploitation

Active, exploited in the wild

Automatable

no

Technical impact

total

Assessed

21 mo ago (2025-01-27)

42.56% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

• Metasploit exploit/windows/local/win_error_cve_2023_36874 Microsoft Error Reporting Local Privilege Elevation Vulnerability metasploit exploit, excellent rank, 2023-07-11
• packetstormsecurity.com http://packetstormsecurity.com/files/174843/Microsoft-Error-Reporting-Local-Privilege-Elevation.html referenced PoC, tagged "exploit" by a source, unverified

• Microsoft Windows 10 Version 1809
• Microsoft Windows Server 2019
• Microsoft Windows Server 2019 (Server Core installation)
• Microsoft Windows Server 2022
• Microsoft Windows 11 version 21H2
• Microsoft Windows 10 Version 21H2
• Microsoft Windows 11 version 22H2
• Microsoft Windows 10 Version 22H2
• Microsoft Windows 10 Version 1507
• Microsoft Windows 10 Version 1607
• Microsoft Windows Server 2016
• Microsoft Windows Server 2016 (Server Core installation)
• Microsoft Windows Server 2008 Service Pack 2
• Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)
• Microsoft Windows Server 2008 Service Pack 2
• Microsoft Windows Server 2008 R2 Service Pack 1
• Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
• Microsoft Windows Server 2012
• Microsoft Windows Server 2012 (Server Core installation)
• Microsoft Windows Server 2012 R2
• Microsoft Windows Server 2012 R2 (Server Core installation)

Weakness

• CWE-59 Improper Link Resolution Before File Access

• msrc.microsoft.com /update-guide/vulnerability/CVE-2023-36874

  vendor-advisory, patch

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

  exploit, third-party-advisory, vdb-entry

• cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36874

  government-resource, us-government-resource

• CVE List CVE-2023-36874
• NVD CVE-2023-36874

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.