Remote code execution via PPTP race condition
Published Apr 27, 2023 · Updated Jan 1, 2025
Race condition in Microsoft Windows PPTP allows remote attackers to execute arbitrary code through network requests to a PPTP server. Microsoft identifies improper synchronization of a shared resource but has not published the affected function, shared object lifecycle, or packet sequence that triggers the race. The target must process PPTP traffic, and exploitation requires winning the race; successful attacks run code on the affected host.
Summary
What happened
Race condition in Microsoft Windows PPTP allows remote attackers to execute arbitrary code through network requests to a PPTP server. Microsoft identifies improper synchronization of a shared resource but has not published the affected function, shared object lifecycle, or packet sequence that triggers the race. The target must process PPTP traffic, and exploitation requires winning the race; successful attacks run code on the affected host.
The record
- CVE
- CVE-2023-21712
- Published
- Apr 27, 2023
- Updated
- Jan 1, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-362, T1210
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 27, 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=10.0.10240.0 <10.0.10240.19562
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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