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Vulnerabilities

Vulnerability · CVE-2026-41051

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

Published May 13, 2026 · catalog updated Jun 17, 2026 · csync2 uses insecure temporary

Check if you run it

No confirmed exploitation is on record for CVE-2026-41051. EPSS is 0.10%. Act only if a listed version of csync2 uses insecure temporary is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (csync2 uses insecure temporary).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.10%
Remediation
Not established
Affected products
See sources for product scope

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

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-41051

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-41051. EPSS is 0.10%. Act only if a listed version of csync2 uses insecure temporary is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition. EPSS 0.10%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 13, 2026 · NIST NVD

    Detected

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

  2. Jun 17, 2026 · NIST NVD

    Updated

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

Sources

  • CVE.orgVulnerability recordCVE-2026-41051

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-41051

    30-day exploitation probability 0.1%

    first.org
  • NIST NVDVulnerability recordCVE-2026-41051

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

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.