SYSTEM privilege escalation via undisclosed integer overflow
Published Jan 10, 2023 · Updated Apr 12, 2025
Integer overflow in the Microsoft Windows Kernel allows local users with low privileges to elevate access to SYSTEM on affected Windows releases. Microsoft identifies integer overflow or wraparound in the kernel but has not disclosed the affected routine, calculation, or attacker-controlled input. Successful exploitation requires existing low-privilege local access and grants SYSTEM privileges, enabling full control of the host.
Summary
What happened
Integer overflow in the Microsoft Windows Kernel allows local users with low privileges to elevate access to SYSTEM on affected Windows releases. Microsoft identifies integer overflow or wraparound in the kernel but has not disclosed the affected routine, calculation, or attacker-controlled input. Successful exploitation requires existing low-privilege local access and grants SYSTEM privileges, enabling full control of the host.
The record
- CVE
- CVE-2023-21754
- Published
- Jan 10, 2023
- Updated
- Apr 12, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-190, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 10, 2023CVE publishedPublication date reported by the CVE source.
- Apr 12, 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=10.0.10240.0 <10.0.10240.19685
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.
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Technologies
Your stack
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Your stack
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