Use-after-free in Fast DDS - CVE-2023-50716
Published: March 4, 2024 / Updated: April 9, 2026
Vulnerability identifier: #VU125725
CSH Severity: 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-2023-50716
CWE-ID: CWE-416
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 cause a denial of service.
The vulnerability exists due to a bad free of uninitialized memory in MessageReceiver::proc_Submsg_DataFrag when processing a crafted DATA_FRAG submessage. A remote attacker can send a specially crafted DATA_FRAG packet to cause a denial of service.
The issue is reachable over the adjacent network via UDP transport and does not require user interaction.
Remediation
Install security update from vendor's website.