Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege VulnerabilityVendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674 CVE-2023-21674
HIGHCISA KEV
Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
Record summary
CVE-2023-21674 has a selected CVSS score of 8.8 (high); EIP currently links 1 repository PoC. CISA lists CVE-2023-21674 in KEV.
Description
Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability.
Description source: GitHub Advisory
Exploitation context
Known exploitation
- CISA KEV
- Listed · Jan 10, 2023 · CISA
- VulnCheck KEV
- Listed · Jan 10, 2023 · VulnCheck
- Reported exploitation
- Observed · VulnCheck
Available material
- Repository PoCs
- 1
CISA SSVC decision
ExploitationActive
AutomatableNo
Technical impactTotal
CISA Coordinator · SSVC 2.0.3 · Evaluated Jul 24, 2024 · Source: CVE List
Affected products and versions
Showing 12 of 17| Product | Source | Version range | Status |
|---|---|---|---|
WindowsBrowse Microsoft / Windows | CISA | Version data not supplied | |
Windows 10 Version 1507Browse Microsoft / Windows 10 Version 1507 | CVE List | 10.0.10240.0 to < 10.0.10240.19685 | affected |
Windows 10 Version 1607Browse Microsoft / Windows 10 Version 1607 | CVE List | 10.0.14393.0 to < 10.0.14393.5648 | affected |
Windows 10 Version 1809Browse Microsoft / Windows 10 Version 1809 | CVE List | 10.0.17763.0 to < 10.0.17763.3887 | affected |
| 10.0.0 to < 10.0.17763.3887 | affected | ||
Windows 10 Version 20H2Browse Microsoft / Windows 10 Version 20H2 | CVE List | 10.0.0 to < 10.0.19042.2486 | affected |
Windows 10 Version 21H2Browse Microsoft / Windows 10 Version 21H2 | CVE List | 10.0.19043.0 to < 10.0.19044.2486 | affected |
Windows 10 Version 22H2Browse Microsoft / Windows 10 Version 22H2 | CVE List | 10.0.19045.0 to < 10.0.19045.2486 | affected |
Windows 11 version 21H2Browse Microsoft / Windows 11 version 21H2 | CVE List | 10.0.0 to < 10.0.22000.1455 | affected |
Windows 11 version 22H2Browse Microsoft / Windows 11 version 22H2 | CVE List | 10.0.22621.0 to < 10.0.22621.1105 | affected |
Windows 8.1Browse Microsoft / Windows 8.1 | CVE List | 6.3.0 to < 6.3.9600.20778 | affected |
Windows Server 2012 R2Browse Microsoft / Windows Server 2012 R2 | CVE List | 6.3.9600.0 to < 6.3.9600.20778 | affected |
Windows Server 2012 R2 (Server Core installation)Browse Microsoft / Windows Server 2012 R2 (Server Core installation) | CVE List | 6.3.9600.0 to < 6.3.9600.20778 | affected |
Proofs of concept
1Repository PoCs
GitHubhd3s5aa/CVE-2023-21674Repository PoCby hd3s5aaStars: 40Not analyzed2 files
References
4nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2023-21674 portal.msrc.microsoft.com
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21674 cisa.govGovernment resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21674