---
title: "CVE-2026-22590: eProsima Fast DDS - Out-of-Bounds Read"
description: "eProsima Fast DDS < 2.6.12, 2.14.6, 3.2.4, 3.3.1, and 3.4.2 contains an out-of-bounds read caused by improper validation of DATA_FRAG submessage payload length in CacheChange_t::add_fragments, letting remote attackers read adjacent heap memory, exploit requires crafted DATA_FRAG packets."
url: https://panop.io/threat-heartbeat/CVE-2026-22590/
---

# CVE-2026-22590 eProsima Fast DDS - Out-of-Bounds Read

eProsima Fast DDS < 2.6.12, 2.14.6, 3.2.4, 3.3.1, and 3.4.2 contains an out-of-bounds read caused by improper validation of DATA\_FRAG submessage payload length in CacheChange\_t::add\_fragments, letting remote attackers read adjacent heap memory, exploit requires crafted DATA\_FRAG packets.

CVSS base score 9.1 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.38% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-22590)

## Details

Type

Out-of-Bounds Read

Impact

Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Published

9 September 2026

Updated

15 October 2026

Weakness

[CWE-125](https://cwe.mitre.org/data/definitions/125.html)

## Vendor fix

Update to versions 2.6.12, 2.14.6, 3.2.4, 3.3.1, or 3.4.2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-22590](https://nvd.nist.gov/vuln/detail/CVE-2026-22590)
- [https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-7r7h-hwfj-q626](https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-7r7h-hwfj-q626)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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