#VU125728 Heap-based buffer overflow in Fast DDS - CVE-2025-62799
Published: April 9, 2026
Vulnerability identifier: #VU125728
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-62799
CWE-ID: CWE-122
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Fast DDS
Fast DDS
Software vendor:
eProsima
eProsima
Description
The vulnerability allows a remote attacker to execute arbitrary code or cause a denial of service.
The vulnerability exists due to a heap-based buffer overflow in the RTPS DATA_FRAG receive path when processing a malformed RTPS DATA_FRAG packet. A remote attacker can send a specially crafted DATA_FRAG packet with crafted fragmentSize and sampleSize values to execute arbitrary code or cause a denial of service.
The issue affects reachable RELIABLE subscribers receiving RTPS over UDP, and no user interaction is required.
Remediation
Install security update from vendor's website.