How severe is CVE-2023-29336?

CVE-2023-29336 has a CVSS 3.1 base score of 7.8 (HIGH). EPSS estimates a 40.9% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2023-29336: Win32k Elevation of Privilege

CISA Known Exploited Vulnerabilities

Microsoft Win32K Privilege Escalation Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2023-05-09

Remediation due

2023-05-30

Required action
Apply updates per vendor instructions.

CISA notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-29336; https://nvd.nist.gov/vuln/detail/CVE-2023-29336

Description

Win32k Elevation of Privilege Vulnerability

Severity

CVSS 3.1 · CNA7.8 HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
Microsoft	Windows 10 Version 1507	10.0.10240.0 to <10.0.10240.19926
Microsoft	Windows 10 Version 1607	10.0.14393.0 to <10.0.14393.5921
Microsoft	Windows Server 2016	10.0.14393.0 to <10.0.14393.5921
Microsoft	Windows Server 2016 (Server Core installation)	10.0.14393.0 to <10.0.14393.5921
Microsoft	Windows Server 2008 Service Pack 2	6.0.6003.0 to <6.0.6003.22070
Microsoft	Windows Server 2008 Service Pack 2 (Server Core installation)	6.0.6003.0 to <6.0.6003.22070
Microsoft	Windows Server 2008 Service Pack 2	6.0.6003.0 to <6.0.6003.22070
Microsoft	Windows Server 2008 R2 Service Pack 1	6.1.7601.0 to <6.1.7601.26519
Microsoft	Windows Server 2008 R2 Service Pack 1 (Server Core installation)	6.1.7601.0 to <6.1.7601.26519
Microsoft	Windows Server 2012	6.2.9200.0 to <6.2.9200.24266
Microsoft	Windows Server 2012 (Server Core installation)	6.2.9200.0 to <6.2.9200.24266
Microsoft	Windows Server 2012 R2	6.3.9600.0 to <6.3.9600.20969
Microsoft	Windows Server 2012 R2 (Server Core installation)	6.3.9600.0 to <6.3.9600.20969

References

2 Links

Vendor advisories

Win32k Elevation of Privilege Vulnerability

Other references

https://www.exploit-db.com/exploits/52301

Record Details

Published

2023-05-09

Last updated

2025-10-21

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.