CVEs / CVE-2023-29336
CVE-2023-29336: Microsoft Win32K Privilege Escalation Vulnerability
- Known exploited in the CISA KEV catalog since 9 May 2023
- high 7.8 CVSS 3.1 (from the CNA)
- EPSS 41.1% chance of exploitation in the next 30 days, higher than 98% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation up to SYSTEM privileges.
Description
Win32k Elevation of Privilege Vulnerability
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows 10 Version 1507 | from 10.0.10240.0, before 10.0.10240.19926 | 10.0.10240.19926 |
| Microsoft Windows 10 Version 1607 | from 10.0.14393.0, before 10.0.14393.5921 | 10.0.14393.5921 |
| Microsoft Windows Server 2016 | from 10.0.14393.0, before 10.0.14393.5921 | 10.0.14393.5921 |
| Microsoft Windows Server 2016 (Server Core installation) | from 10.0.14393.0, before 10.0.14393.5921 | 10.0.14393.5921 |
| Microsoft Windows Server 2008 Service Pack 2 | from 6.0.6003.0, before 6.0.6003.22070 | 6.0.6003.22070 |
| Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) | from 6.0.6003.0, before 6.0.6003.22070 | 6.0.6003.22070 |
| Microsoft Windows Server 2008 Service Pack 2 | from 6.0.6003.0, before 6.0.6003.22070 | 6.0.6003.22070 |
| Microsoft Windows Server 2008 R2 Service Pack 1 | from 6.1.7601.0, before 6.1.7601.26519 | 6.1.7601.26519 |
| Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) | from 6.1.7601.0, before 6.1.7601.26519 | 6.1.7601.26519 |
| Microsoft Windows Server 2012 | from 6.2.9200.0, before 6.2.9200.24266 | 6.2.9200.24266 |
| Microsoft Windows Server 2012 (Server Core installation) | from 6.2.9200.0, before 6.2.9200.24266 | 6.2.9200.24266 |
| Microsoft Windows Server 2012 R2 | from 6.3.9600.0, before 6.3.9600.20969 | 6.3.9600.20969 |
| Microsoft Windows Server 2012 R2 (Server Core installation) | from 6.3.9600.0, before 6.3.9600.20969 | 6.3.9600.20969 |
Exploitation
| In CISA KEV since | 9 May 2023 |
|---|---|
| Due date for US federal agencies | 30 May 2023 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HScored by the CNA ([email protected]) |
|---|---|
| Weakness | CWE-416 |
References
- CVE-2023-29336 on NVD
- CVE-2023-29336 in the CISA KEV catalog
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-29336 (cited by CISA)
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29336 Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/52301 Exploit
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-29336 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.