What’s Vulnerable › Vulnerabilities

CVE-2025-67109

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-23 · updated 2026-07-05
• Weakness: 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.

Affected products

• Eclipse Foundation Eclipse Cyclone DDS: before 0.10.5 — fixed in 0.10.5

How to fix

Upgrade to a fixed version: Eclipse Foundation Eclipse Cyclone DDS 0.10.5. Check the vendor advisory for mitigations.

References

• 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

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