SYSTEM privilege escalation via Kerberos timing discrepancy
Published Aug 13, 2024 · Updated Jul 10, 2025
Elevation of privilege in Windows Kerberos allows remote attackers to gain SYSTEM privileges through a machine-in-the-middle attack. Microsoft identifies an observable timing discrepancy in Kerberos but has not disclosed the affected function or unequal operation. Exploitation requires control of the logical network path between the target and a requested resource.
Summary
What happened
Elevation of privilege in Windows Kerberos allows remote attackers to gain SYSTEM privileges through a machine-in-the-middle attack. Microsoft identifies an observable timing discrepancy in Kerberos but has not disclosed the affected function or unequal operation. Exploitation requires control of the logical network path between the target and a requested resource.
The record
- CVE
- CVE-2024-29995
- Published
- Aug 13, 2024
- Updated
- Jul 10, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-208, T1557
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 13, 2024CVE publishedPublication date reported by the CVE source.
- Jul 10, 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 <10.0.10240.20751
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.
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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