🛡️ CVE-2025-62601 — fast-dds

🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-122 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group

). Prior to versions 3.4.1, 3.3.1, and 2.6.11, when the security mode is enabled, modifying the DATA Submessage within an

SPDP packet sent by a publisher causes a heap buffer overflow, resulting in remote termination of Fast-DDS. If the fields

of PID_IDENTITY_TOKEN or PID_PERMISSIONS_TOKEN in the DATA Submessage — specifically by tampering with the str_size

value read by readString (called from readBinaryProperty) — are modified, a 32-bit integer overflow can occur, causing

std::vector::resize to use an attacker-controlled size and quickly trigger heap buffer overflow and remote process term

ination. Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2025-62601 is classified as CWE-122: Heap-based Buffer Overflow. A write past the end of a heap allocation corrupts allocator metadata or neighbouring objects.

Affected software

CVE-2025-62601 is recorded against 1 package.

  • fast-dds

Timeline and source

Published on 3 February 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
github.com
security-tracker.debian.org

CVE-2025-62601 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-122
Public Exploit ✅ No
Source NVD
Published 2026-02-03
Updated 2026-08-11
Modified 2026-06-17

Affected Packages

Software From version Fixed in
fast-dds — —

Similar Threats

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