Remote code execution via L2TP use-after-free
Published Oct 10, 2023 · Updated Apr 14, 2025
Use-after-free in Microsoft Windows L2TP allows remote attackers to execute arbitrary code through network traffic without authentication. The L2TP implementation continues to access memory after freeing it while processing attacker-controlled protocol data; Microsoft has not disclosed the affected object or function. Exploitation requires no privileges or user interaction, but high-complexity conditions must be met to run code in the affected service's context.
Summary
What happened
Use-after-free in Microsoft Windows L2TP allows remote attackers to execute arbitrary code through network traffic without authentication. The L2TP implementation continues to access memory after freeing it while processing attacker-controlled protocol data; Microsoft has not disclosed the affected object or function. Exploitation requires no privileges or user interaction, but high-complexity conditions must be met to run code in the affected service's context.
The record
- CVE
- CVE-2023-41767
- Published
- Oct 10, 2023
- Updated
- Apr 14, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-416, T1210
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 10, 2023CVE publishedPublication date reported by the CVE source.
- Apr 14, 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 <10.0.10240.20232
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
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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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