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CVE-2023-29336: Microsoft Win32K Privilege Escalation Vulnerability

criticalknown exploitedpublic exploitCVE-2023-29336
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation up to SYSTEM privileges.

CSIRTS triage

vendor: Microsoftproduct: Win32KPrivilege escalation
What
An unspecified vulnerability allows for privilege escalation up to SYSTEM privileges.
Who is affected
Users of Microsoft Win32K are affected.
Urgency
Immediate remediation is necessary as the vulnerability is actively exploited and rated critical.
Action
Install the latest security updates for Win32K.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2023-05-09
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-29336

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2023-29336coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Win32K Privilege

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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