DEBIAN-CVE-2026-22590

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Source

https://security-tracker.debian.org/tracker/CVE-2026-22590

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22590.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-22590

Upstream

CVE-2026-22590

Published

2026-09-09T16:17:02Z

Modified

2026-09-12T11:00:07Z

Severity

9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator

Summary

[none]

Details

eprosima Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group). Versions prior to 2.6.12, 2.14.6, 3.2.4, 3.3.1, and 3.4.2 have a remotely triggerable Out-of-Bounds Read while processing RTPS DATA_FRAG submessages. An attacker can craft a DATA_FRAG with a large sampleSize but a small actual payload, and set fragmentsInSubmessage such that the receiver treats the packet as the LAST fragment**. In this LAST-fragment path, Fast-DDS computes incoming_length based on sampleSize and calls memcpy() without validating incoming_data.length >= incoming_length. As a result, CacheChange_t::add_fragments() reads past the received UDP datagram buffer and into adjacent heap memory, copying those bytes into the reassembly buffer. In a Discovery Server deployment, the resulting CacheChange_t can be relayed to other participants, meaning that a newly joining participant may receive leaked heap memory (e.g., pointer values that could aid ASLR bypass). Versions 2.6.12, 2.14.6, 3.2.4, 3.3.1, and 3.4.2 fix the issue.

References

https://security-tracker.debian.org/tracker/CVE-2026-22590

Affected packages

Debian:12 / fastdds

Package

Name: fastdds
Purl: pkg:deb/debian/fastdds?arch=source&distro=bookworm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.9.1+ds-1

2.9.1+ds-1+deb12u1

2.9.1+ds-1+deb12u2

2.10.1+ds-1

2.10.1+ds-2

2.10.1+ds-3

2.11.2+ds-1

2.11.2+ds-2

2.11.2+ds-3

2.11.2+ds-4

2.11.2+ds-5

2.11.2+ds-6

2.11.2+ds-6.1~exp1

2.11.2+ds-6.1

2.14.0+ds-1

2.14.0+ds-2

2.14.0+ds-3

2.14.0+ds-4

2.14.1+ds-1

2.14.2+ds-1

2.14.3+ds-1

3.*

3.0.0+ds-1

3.0.0+ds-2

3.0.0+ds-3

3.0.1+ds-1

3.1.0+ds-1

3.1.0+ds-2

3.1.2+ds-1

3.3.0+ds-1

3.3.0+ds-2

3.3.0+ds-3

3.6.1+ds-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22590.json"

Debian:13 / fastdds