CVE-2025-67109

Q: How do I fix CVE-2025-67109?

Upgrade cyclone data distribution service to 0.10.5 or later.

Q: Is CVE-2025-67109 being actively exploited?

Not that we know of. CVE-2025-67109 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.30% is the estimated probability that it will be exploited in the next 30 days. That is higher than 22% of all scored CVEs.

Q: How severe is CVE-2025-67109?

CVE-2025-67109 has a CVSS v3 base score of 10.0, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2025-67109 affect?

Published advisories record a fix for cyclone data distribution service (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICAL

10.0

CVSS v3

NVD

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.

CWE-298

How to fix

Remediation Available

cyclone data distribution serviceNVD

Affected:< 0.10.5Fixed in:0.10.5CVE-2025-67109derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.30%probability of exploitation in 30 days

22ndpercentile

Low risk: more likely to be exploited than 22% of all known CVEs.

References

Third-Party Advisory1

gist.github.com

Product2

Related Vulnerabilities

Other CWE-298 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-42446	Medium	6.5	0.5%	-	Fix
CVE-2025-67108	Critical	10.0	0.3%	-	-
CVE-2024-1248	Medium	4.8	0.2%	-	Fix
CVE-2025-59036	Medium	5.5	0.2%	-	-
CVE-2025-4384	Unscored	-	0.1%	-	-
CVE-2025-61736	Unscored	-	0.1%	-	-

Common questions

How do I fix CVE-2025-67109?

Upgrade cyclone data distribution service to 0.10.5 or later.

Is CVE-2025-67109 being actively exploited?

Not that we know of. CVE-2025-67109 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.30% is the estimated probability that it will be exploited in the next 30 days. That is higher than 22% of all scored CVEs.

How severe is CVE-2025-67109?

CVE-2025-67109 has a CVSS v3 base score of 10.0, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2025-67109 affect?

Published advisories record a fix for cyclone data distribution service (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-05.