CVE-2025-65865

HIGH

Published Dec 23, 2025 Modified Jan 6, 2026 CWE-190

Description

An integer overflow in eProsima Fast-DDS v3.3 allows attackers to cause a Denial of Service (DoS) via a crafted input.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-190 Integer Overflow

Affected Products

Vendor	Product	Versions
eprosima	fast_dds	All

References

Exploits

https://github.com/lkloliver/poc/blob/main/Detail.md

Other References

http://eprosima.com http://fast-dds.com https://gist.github.com/lkloliver/7aa48cb9fc7a1dd74cb595212bb69d33

Frequently Asked Questions

What is CVE-2025-65865? +

An integer overflow in eProsima Fast-DDS v3.3 allows attackers to cause a Denial of Service (DoS) via a crafted input. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-65865? +

CVE-2025-65865 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-65865? +

CVE-2025-65865 affects products from eprosima, specifically: fast_dds. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-65865? +

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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