Vulnerability-Lookup

UBUNTU-CVE-2026-22590 (CVE-2026-22590)

Vulnerability from osv_ubuntu – Published: 2026-09-09 16:17 – Updated: 2026-09-16 11:31 – Source website

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.

Severity

9.1 (Critical)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-22590	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-22590	REPORT
	https://github.com/eProsima/Fast-DDS/security/adv…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "fastdds-tools",
            "binary_version": "2.5.0+ds-3ubuntu0.1~esm1"
          },
          {
            "binary_name": "libfastrtps2.5",
            "binary_version": "2.5.0+ds-3ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "fastdds",
        "purl": "pkg:deb/ubuntu/fastdds@2.5.0+ds-3ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.1.0+ds-9",
        "2.4.1+ds-1",
        "2.5.0+ds-3",
        "2.5.0+ds-3ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "fastdds-tools",
            "binary_version": "2.11.2+ds-6.1build3"
          },
          {
            "binary_name": "libfastrtps2.11t64",
            "binary_version": "2.11.2+ds-6.1build3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "fastdds",
        "purl": "pkg:deb/ubuntu/fastdds@2.11.2+ds-6.1build3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.10.1+ds-3",
        "2.11.2+ds-6",
        "2.11.2+ds-6ubuntu1",
        "2.11.2+ds-6.1build2",
        "2.11.2+ds-6.1build3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "fastdds-tools",
            "binary_version": "3.3.0+ds-3ubuntu1"
          },
          {
            "binary_name": "libfastdds3.3",
            "binary_version": "3.3.0+ds-3ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "fastdds",
        "purl": "pkg:deb/ubuntu/fastdds@3.3.0+ds-3ubuntu1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.1.2+ds-1build1",
        "3.3.0+ds-3ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "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 \u003e= 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.",
  "id": "UBUNTU-CVE-2026-22590",
  "modified": "2026-09-16T11:31:19Z",
  "published": "2026-09-09T16:17:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-22590"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-22590"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-7r7h-hwfj-q626"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-22590"
  ]
}

CVE-2026-22590 (GCVE-0-2026-22590)

Vulnerability from cvelistv5 – Published: 2026-09-09 15:43 – Updated: 2026-09-09 16:08

Title

Fast-DDS Discovery Server: Out-of-Bounds Read & Heap Memory Disclosure via DATA_FRAG sampleSize / fragmentsInSubmessage

Summary

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.

Severity

9.1 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-09 16:08 UTC

CWE

CWE-125 - Out-of-bounds Read
CWE-131 - Incorrect Calculation of Buffer Size

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/eProsima/Fast-DDS/security/adv…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
eProsima	Fast-DDS	Affected: < 2.6.12 Affected: >= 2.7.0, < 2.14.6 Affected: >= 3.0.0, < 3.2.4 Affected: >= 3.3.0, < 3.3.1 Affected: >= 3.4.0, < 3.4.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-22590",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-09T16:08:33.638883Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-09T16:08:57.108Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-7r7h-hwfj-q626"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Fast-DDS",
          "vendor": "eProsima",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.6.12"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.7.0, \u003c 2.14.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.2.4"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.3.0, \u003c 3.3.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.4.0, \u003c 3.4.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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 \u003e= 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-131",
              "description": "CWE-131: Incorrect Calculation of Buffer Size",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-09T15:43:28.589Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-7r7h-hwfj-q626",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-7r7h-hwfj-q626"
        }
      ],
      "source": {
        "advisory": "GHSA-7r7h-hwfj-q626",
        "discovery": "UNKNOWN"
      },
      "title": "Fast-DDS Discovery Server: Out-of-Bounds Read \u0026 Heap Memory Disclosure via DATA_FRAG\u00a0 sampleSize\u00a0/\u00a0fragmentsInSubmessage"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-22590",
    "datePublished": "2026-09-09T15:43:28.589Z",
    "dateReserved": "2026-01-07T21:50:39.532Z",
    "dateUpdated": "2026-09-09T16:08:57.108Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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UBUNTU-CVE-2026-22590 (CVE-2026-22590)

CVE-2026-22590 (GCVE-0-2026-22590)

Tags

Sightings

Nomenclature

Related by attack behaviour