Win32k Elevation of Privilege Vulnerability
85Vexday Risk Score
Prioritize patching. It under exploitation confirmed by CISA and has a public proof of concept.
ssvc Actcvss 7.8epss 41%
from disclosure to weapon0 days
Published on NVDMay 9
1st PoCOct 25
CISA KEVMay 9
exploitation probability
41%top 1% of all CVEs
observed exploitation
yesCISA + VulnCheck
4 public exploit(s)
Action required by CISAfederal deadline: 2023-05-30
Apply updates per vendor instructions.
In short
A flaw in Windows' graphics system (Win32k) allows an attacker with limited user privileges to gain higher system permissions. This is dangerous because it can give attackers full control over the computer.
Technical detail
Use-after-free vulnerability (CWE-416) in Win32k kernel component. An attacker with standard user privileges can trigger memory corruption by manipulating graphics objects, leading to kernel-level code execution and privilege escalation.
Summary generated and translated by AI from the official description.
Win32k Elevation of Privilege Vulnerability
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
Affected products
Microsoft · Windows 10 Version 1507Microsoft · Windows 10 Version 1607Microsoft · Windows Server 2008 R2 Service Pack 1Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)Microsoft · Windows Server 2008 Service Pack 2Microsoft · Windows Server 2008 Service Pack 2Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)Microsoft · Windows Server 2012Microsoft · Windows Server 2012 R2Microsoft · Windows Server 2012 R2 (Server Core installation)Microsoft · Windows Server 2012 (Server Core installation)Microsoft · Windows Server 2016Microsoft · Windows Server 2016 (Server Core installation)public PoCs found — 4
cve_referencewww.exploit-db.com/exploits/52301unverifiedgithubgithub.com/m-cetin/CVE-2023-29336★ 21vulncheckvulncheck.com/xdb/3661f8004753unverifiedvulncheckvulncheck.com/xdb/79154f41d6e7unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.