CVE Catalog

CVE-2026-41051

MediumCVSS 5.0
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.08%

0th percentile - higher than 0% of all known CVEs

Summary

csync2 uses insecure temporary directories when compiled with C99 or later, allowing for TOCTOU-style attacks on the temporary directories.

Risk Assessment

A local attacker can exploit a time-of-check-to-time-of-use race to swap files in the temporary directory. This may lead to file overwrite or privilege escalation.

Recommendation

Update csync2 to a version containing the fix for secure temporary directory creation. Until then, restrict local access to trusted users.

Related vulnerabilities

Original NVD description (English source)

csync2 uses insecure temporary directories when compiled with C99 or later, allowing for TOCTOU style attacks on the temporary directories.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS