CVE catalog

CVE-2026-22590

Severity: Critical · CVSS 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Published: Sep 9, 2026, 4:17:02 PM UTC
Updated: Sep 9, 2026, 4:17:02 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.54% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	fastdds	sid	`3.3.0+ds-3`	vulnerable
Debian	fastdds	trixie	`3.1.2+ds-1`	vulnerable
Debian	fastdds	bookworm	`2.9.1+ds-1+deb12u2`	vulnerable
Debian	fastdds	bookworm-security	`2.9.1+ds-1+deb12u2`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	fastdds	source	sid	`(unfixed)`	not yet assigned	Not reported	Not reported
Debian	fastdds	source	trixie	`(unfixed)`	not yet assigned	Not reported	Not reported
Debian	fastdds	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported

Notes

[trixie] fastdds: Minor issue [bookworm] fastdds: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[fastdds-tools]Affected
Source package: [fastdds]
Details (4)
- 2.9.1+ds-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
- 2.9.1+ds-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
- 2.9.1+ds-1+deb12u2 · amd64 · bookworm-security
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
- 2.9.1+ds-1+deb12u2 · arm64 · bookworm-security
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
[libfastrtps2.9]Affected
Source package: [fastdds]
Details (4)
- 2.9.1+ds-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
- 2.9.1+ds-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
- 2.9.1+ds-1+deb12u2 · amd64 · bookworm-security
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
- 2.9.1+ds-1+deb12u2 · arm64 · bookworm-security
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
[libfastrtps-dev]Affected
Source package: [fastdds]
Details (4)
- 2.9.1+ds-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
- 2.9.1+ds-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
- 2.9.1+ds-1+deb12u2 · amd64 · bookworm-security
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
- 2.9.1+ds-1+deb12u2 · arm64 · bookworm-security
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
[libfastrtps-doc]Affected
Source package: [fastdds]
Details (4)
- 2.9.1+ds-1+deb12u2 · all · bookworm
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
- 2.9.1+ds-1+deb12u2 · all · bookworm
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
- 2.9.1+ds-1+deb12u2 · all · bookworm-security
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12
- 2.9.1+ds-1+deb12u2 · all · bookworm-security
  Affected
  nvd · fastdds · debian · bookworm; nvd · fastdds · debian · 12

[Debian 13 (Trixie)]

[fastdds-tools]Affected
Source package: [fastdds]
Details (2)
- 3.1.2+ds-1+b1 · amd64 · trixie
  Affected
  nvd · fastdds · debian · 13
- 3.1.2+ds-1+b1 · arm64 · trixie
  Affected
  nvd · fastdds · debian · 13
[libfastdds3.1]Affected
Source package: [fastdds]
Details (2)
- 3.1.2+ds-1+b1 · amd64 · trixie
  Affected
  nvd · fastdds · debian · 13
- 3.1.2+ds-1+b1 · arm64 · trixie
  Affected
  nvd · fastdds · debian · 13
[libfastdds-dev]Affected
Source package: [fastdds]
Details (2)
- 3.1.2+ds-1+b1 · amd64 · trixie
  Affected
  nvd · fastdds · debian · 13
- 3.1.2+ds-1+b1 · arm64 · trixie
  Affected
  nvd · fastdds · debian · 13
[libfastdds-doc]Affected
Source package: [fastdds]
Details (2)
- 3.1.2+ds-1 · all · trixie
  Affected
  nvd · fastdds · debian · 13
- 3.1.2+ds-1 · all · trixie
  Affected
  nvd · fastdds · debian · 13
[libfastrtps-dev]Affected
Source package: [fastdds]
Details (2)
- 3.1.2+ds-1 · all · trixie
  Affected
  nvd · fastdds · debian · 13
- 3.1.2+ds-1 · all · trixie
  Affected
  nvd · fastdds · debian · 13

Observed: Oct 23, 2026, 9:28:49 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]