Local privilege escalation
Published Feb 13, 2024 · Updated Aug 10, 2026
Elevation of privilege in Microsoft Message Queuing on affected Windows builds allows local users to gain elevated privileges. Microsoft identifies sensitive data stored in improperly locked memory but has not disclosed the affected function, data structure, or incorrect locking operation. Exploitation requires low local privileges and a high-complexity condition, and successful exploitation grants broad confidentiality, integrity, and availability impact.
Summary
What happened
Elevation of privilege in Microsoft Message Queuing on affected Windows builds allows local users to gain elevated privileges. Microsoft identifies sensitive data stored in improperly locked memory but has not disclosed the affected function, data structure, or incorrect locking operation. Exploitation requires low local privileges and a high-complexity condition, and successful exploitation grants broad confidentiality, integrity, and availability impact.
The record
- CVE
- CVE-2024-21355
- Published
- Feb 13, 2024
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-591, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 13, 2024CVE publishedPublication date reported by the CVE source.
- Aug 10, 2026Record 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 <10.0.10240.20469
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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