Is CVE-2023-29336 in the CISA KEV catalog?

Yes. CVE-2023-29336 is on the CISA Known Exploited Vulnerabilities list, added 2023-05-09.

What is the CVSS severity of CVE-2023-29336?

CVE-2023-29336 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2023-29336?

CVE-2023-29336 has an EPSS score of 40.92% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2023-29336

HIGHCISA KEVEPSS 98th pctl

7.8

CVSS v3

NVD

Description

Win32k Elevation of Privilege Vulnerability

CWE-416Use After Free

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

40.92%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Microsoft Win32K Privilege Escalation Vulnerability

Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation up to SYSTEM privileges.

Apply updates per vendor instructions.

Remediation due: 2023-05-30

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-28.