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Rsync < 3.4.3 TOCTOU Race Condition Allows Symlink-Based Arbitrary File Write

🗓️ 21 May 2026 08:02:04Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 13 Views

Rsync older than 3.4.3 has a time of check to time of use race condition enabling symlink based file writes.

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Detection

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23 May 2026 08:38Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17 - 7.8
CVSS 47.3
EPSS0.00152
SSVC
13