Local privilege escalation through undisclosed Win32k flaw
Published Dec 12, 2023 · Updated Jan 1, 2025
Elevation of privilege in Microsoft Win32k on affected Windows 11 and Server 23H2 builds allows local users to gain elevated rights. Microsoft has not published the vulnerable Win32k routine or the operation it performs incorrectly on attacker-controlled input. Exploitation requires existing low-privilege access and can compromise confidentiality, integrity, and availability within the affected system.
Summary
What happened
Elevation of privilege in Microsoft Win32k on affected Windows 11 and Server 23H2 builds allows local users to gain elevated rights. Microsoft has not published the vulnerable Win32k routine or the operation it performs incorrectly on attacker-controlled input. Exploitation requires existing low-privilege access and can compromise confidentiality, integrity, and availability within the affected system.
The record
- CVE
- CVE-2023-35631
- Published
- Dec 12, 2023
- Updated
- Jan 1, 2025
- Vendor
- Microsoft
- Product
- Windows 11 version 21H2
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 12, 2023CVE publishedPublication date reported by the CVE source.
- Jan 1, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.0 <10.0.22000.2652
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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