CVE-2025-62602

What it is

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 are tampered with — specially `readOctetVector` reads an unchecked `vecsize` that is propagated unchanged into `readData` as the `length` parameter — the attacker-contro lled `vecsize` can trigger a 32-bit integer overflow during the `length` calculation. That overflow can cause large alloca tion attempt that quickly leads to OOM, enabling a remotely-triggerable denial-of-service and remote process termination. Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

0.5% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-02-03 20:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 09:52 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.5% in the next 30 days (EPSS).
• Severity: 1.7 LOW (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2026-02-03 20:15 UTC

Last modified

2026-06-17 09:52 UTC

Exploit probability

0.5% · EPSS, next 30 days

Weakness

CWE-122

Record status

Analyzed

Affected

• Eprosima Fast Dds < 2.6.11
• Eprosima Fast Dds < 3.3.1
• Eprosima Fast Dds 3.4.0
• Debian Linux 11.0
• Debian Linux 12.0
• Debian Linux 13.0

Attack profile CVSS 4.0 · 1.7

Attack vector

Network

Complexity

Low

Attack requirements

Present

Privileges needed

None

User interaction

None

Confidentiality

None

Integrity

None

Availability

Low

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2025-62602.md and follow it. Check whether this project is affected by CVE-2025-62602. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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