Vulnerability-Lookup

FKIE_CVE-2025-64438

Vulnerability from fkie_nvd - Published: 2026-02-03 20:15 - Updated: 2026-02-18 16:02

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

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, a remotely triggerable Out-of-Memory (OOM) denial-of-service exists in Fast -DDS when processing RTPS GAP submessages under RELIABLE QoS. By sending a tiny GAP packet with a huge gap range (`gapList .base - gapStart`), an attacker drives `StatefulReader::processGapMsg()` into an unbounded loop that inserts millions of s equence numbers into `WriterProxy::changes_received_` (`std::set`), causing multi-GB heap growth and process termination. No authentication is required beyond network reachability to the reader on the DDS domain. In environments without an RSS limit (non-ASan / unlimited), memory consumption was observed to rise to ~64 GB. Versions 3.4.1, 3.3.1, and 2.6.11 patch t he issue.

References

URL	Tags
security-advisories@github.com	https://github.com/eProsima/Fast-DDS/commit/0b0cb308eaeeb2175694aa0a0a723106824ce9a7	Patch
security-advisories@github.com	https://github.com/eProsima/Fast-DDS/commit/71da01b4aea4d937558984f2cf0089f5ba3c871f	Patch
security-advisories@github.com	https://github.com/eProsima/Fast-DDS/commit/8ca016134dac20b6e30e42b7b73466ef7cdbc213	Patch
security-advisories@github.com	https://security-tracker.debian.org/tracker/CVE-2025-64438	Third Party Advisory

Impacted products

Vendor	Product	Version
eprosima	fast_dds	*
eprosima	fast_dds	*
eprosima	fast_dds	3.4.0

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:eprosima:fast_dds:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8BAE40E0-6DFF-4878-9438-9C2488C9831C",
              "versionEndExcluding": "2.6.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:eprosima:fast_dds:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "94A01F76-524F-4A5B-A782-CC789F229136",
              "versionEndExcluding": "3.3.1",
              "versionStartIncluding": "3.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:eprosima:fast_dds:3.4.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "D4452677-95AB-46F9-9B76-9F0B15E62261",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group\n). Prior to versions 3.4.1, 3.3.1, and 2.6.11, a remotely triggerable Out-of-Memory (OOM) denial-of-service exists in Fast\n-DDS when processing RTPS GAP submessages under RELIABLE QoS. By sending a tiny GAP packet with a huge gap range (`gapList\n.base - gapStart`), an attacker drives `StatefulReader::processGapMsg()` into an unbounded loop that inserts millions of s\nequence numbers into `WriterProxy::changes_received_` (`std::set`), causing multi-GB heap growth and process termination. \nNo authentication is required beyond network reachability to the reader on the DDS domain. In environments without an RSS \nlimit (non-ASan / unlimited), memory consumption was observed to rise to ~64 GB. Versions 3.4.1, 3.3.1, and 2.6.11 patch t\nhe issue."
    },
    {
      "lang": "es",
      "value": "Fast DDS es una implementaci\u00f3n en C++ del est\u00e1ndar DDS (Data Distribution Service) de la OMG (Object Management Group). Antes de las versiones 3.4.1, 3.3.1 y 2.6.11, existe una denegaci\u00f3n de servicio por falta de memoria (OOM) que puede ser activada remotamente en Fast-DDS al procesar submensajes RTPS GAP bajo QoS RELIABLE. Al enviar un peque\u00f1o paquete GAP con un enorme rango de brecha (\u0027gapList.base - gapStart\u0027), un atacante lleva a \u0027StatefulReader::processGapMsg()\u0027 a un bucle ilimitado que inserta millones de n\u00fameros de secuencia en \u0027WriterProxy::changes_received_\u0027 (\u0027std::set\u0027), causando un crecimiento de la pila de varios GB y la terminaci\u00f3n del proceso. No se requiere autenticaci\u00f3n m\u00e1s all\u00e1 de la accesibilidad de red al lector en el dominio DDS. En entornos sin un l\u00edmite de RSS (no-ASan / ilimitado), se observ\u00f3 que el consumo de memoria aumentaba a ~64 GB. Las versiones 3.4.1, 3.3.1 y 2.6.11 corrigen el problema."
    }
  ],
  "id": "CVE-2025-64438",
  "lastModified": "2026-02-18T16:02:42.847",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 1.7,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "UNREPORTED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-02-03T20:15:57.280",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/eProsima/Fast-DDS/commit/0b0cb308eaeeb2175694aa0a0a723106824ce9a7"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/eProsima/Fast-DDS/commit/71da01b4aea4d937558984f2cf0089f5ba3c871f"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/eProsima/Fast-DDS/commit/8ca016134dac20b6e30e42b7b73466ef7cdbc213"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security-tracker.debian.org/tracker/CVE-2025-64438"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

CVE-2025-64438 (GCVE-0-2025-64438)

Vulnerability from cvelistv5 – Published: 2026-02-03 19:32 – Updated: 2026-02-03 20:30

Title

Fast-DDS: Unbounded GAP range triggers OOM DoS under RELIABLE QoS

Summary

Severity ?

1.7 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

GitHub_M

References

URL

Tags

	https://security-tracker.debian.org/tracker/CVE-2…
	https://github.com/eProsima/Fast-DDS/commit/0b0cb…
	https://github.com/eProsima/Fast-DDS/commit/71da0…
	https://github.com/eProsima/Fast-DDS/commit/8ca01…

Impacted products

	Vendor	Product	Version
	eProsima	Fast-DDS	Affected: 3.4.0 , < 3.4.1 (custom) Affected: 3.0.0 , < 3.3.1 (custom) Affected: 0 , < 2.6.11 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-64438",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-03T20:30:43.758529Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-03T20:30:50.310Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Fast-DDS",
          "repo": "https://github.com/eProsima/Fast-DDS",
          "vendor": "eProsima",
          "versions": [
            {
              "lessThan": "3.4.1",
              "status": "affected",
              "version": "3.4.0",
              "versionType": "custom"
            },
            {
              "lessThan": "3.3.1",
              "status": "affected",
              "version": "3.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "2.6.11",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
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              "type": "text/html",
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      "metrics": [
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          "cvssV4_0": {
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            "userInteraction": "NONE",
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          "scenarios": [
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              "value": "GENERAL"
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      "problemTypes": [
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-64438",
    "datePublished": "2026-02-03T19:32:22.265Z",
    "dateReserved": "2025-11-03T22:12:51.366Z",
    "dateUpdated": "2026-02-03T20:30:50.310Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2025-64438

CVE-2025-64438 (GCVE-0-2025-64438)

Tags

Sightings

Nomenclature