CVE-2025-67109

CRITICAL

Published Dec 23, 2025 Modified Jan 6, 2026 CWE-298

Description

Improper verification of the time certificate in Eclipse Cyclone DDS before v0.10.5 allows attackers to bypass certificate checks and execute commands with System privileges.

CVSS v3.1 Score

10.0

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness Type (CWE)

CWE-298 CWE-298

Affected Products

Vendor	Product	Versions
eclipse	cyclone_data_distribution_service	< 0.10.5

References

Other References

http://eclipse.com https://gist.github.com/lkloliver/669e15bc7e6194133e4ee1026ce157e6 https://github.com/eclipse-cyclonedds/cyclonedds/blob/master/src/ddsrt/src/time/posix/time.c#L28 https://github.com/eclipse-cyclonedds/cyclonedds/blob/master/src/security/builtin_plugins/authentication/src/auth_utils.c#L84

Frequently Asked Questions

What is CVE-2025-67109? +

Improper verification of the time certificate in Eclipse Cyclone DDS before v0.10.5 allows attackers to bypass certificate checks and execute commands with System privileges. It has a CVSS v3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2025-67109? +

CVE-2025-67109 has a CVSS v3.1 score of 10.0 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-67109? +

CVE-2025-67109 affects products from eclipse, specifically: cyclone_data_distribution_service. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-67109? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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Quick Facts

CVSS Score: 10.0
Severity: CRITICAL
Published: Dec 23, 2025

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