#VU125729 Uncontrolled Memory Allocation in Fast DDS - CVE-2025-62603

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Main Vulnerability Database Vulnerabilities #VU125729

#VU125729 Uncontrolled Memory Allocation in Fast DDS - CVE-2025-62603

Published: April 9, 2026


Vulnerability identifier: #VU125729
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-62603
CWE-ID: CWE-789
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Fast DDS
Software vendor:
eProsima

Description

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to memory allocation with excessive size value in the CDRMessage::readDataHolderSeq parser when parsing ParticipantGenericMessage DataHolderSeq data. A remote attacker can send a specially crafted network message to cause a denial of service.

Only deployments with DDS Security enabled are vulnerable.


Remediation

Install security update from vendor's website.

External links