Vulnerability-Lookup

CVE-2021-38441 (GCVE-0-2021-38441)

Vulnerability from cvelistv5 – Published: 2022-05-05 15:15 – Updated: 2025-04-16 16:24

Title

Eclipse CycloneDDS Write-what-where Condition

Summary

Eclipse CycloneDDS versions prior to 0.8.0 are vulnerable to a write-what-where condition, which may allow an attacker to write arbitrary values in the XML parser.

Severity

6.6 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-16 15:52 UTC

CWE

CWE-123 - Write-what-where Condition

Assigner

icscert CNA under the icscert root

CNA scorecard B 75/100 over 342 records in the last 180 days details

References

2 references

URL	Tags
https://www.cisa.gov/uscert/ics/advisories/icsa-2…	x_refsource_CONFIRM
https://projects.eclipse.org/projects/iot.cyclonedds	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version	CPE status
Eclipse	CycloneDDS	Affected: unspecified , < 0.8.0 (custom)	guessed

Credits

Federico Maggi (Trend Micro Research), Ta-Lun Yen, and Chizuru Toyama (TXOne Networks, Trend Micro) reported these vulnerabilities to CISA. In addition, Patrick Kuo, Mars Cheng (TXOne Networks, Trend Micro), Víctor Mayoral-Vilches (Alias Robotics), and Erik Boasson (ADLINK Technology) also contributed to this research.

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FKIE_CVE-2021-38441

Vulnerability from fkie_nvd - Published: 2022-05-05 17:15 - Updated: 2026-06-17 04:02

Severity

6.6 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

Eclipse CycloneDDS versions prior to 0.8.0 are vulnerable to a write-what-where condition, which may allow an attacker to write arbitrary values in the XML parser.

References

URL	Tags
ics-cert@hq.dhs.gov	https://projects.eclipse.org/projects/iot.cyclonedds	Product
ics-cert@hq.dhs.gov	https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02	Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108	https://projects.eclipse.org/projects/iot.cyclonedds	Product
af854a3a-2127-422b-91ae-364da2661108	https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02	Third Party Advisory, US Government Resource

Impacted products

	Vendor	Product	Version
	eclipse	cyclonedds	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "CycloneDDS",
          "vendor": "Eclipse",
          "versions": [
            {
              "lessThan": "0.8.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "ics-cert@hq.dhs.gov"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:eclipse:cyclonedds:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CCB5CFFE-D864-4B96-A625-4FDA95D9D2A9",
              "versionEndExcluding": "0.8.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Eclipse CycloneDDS versions prior to 0.8.0 are vulnerable to a write-what-where condition, which may allow an attacker to write arbitrary values in the XML parser."
    },
    {
      "lang": "es",
      "value": "Eclipse CycloneDDS versiones anteriores a 0.8.0, son vulnerables a una condici\u00f3n de escritura en cualquier lugar, lo que puede permitir a un atacante escribir valores arbitrarios en el analizador XML"
    }
  ],
  "id": "CVE-2021-38441",
  "lastModified": "2026-06-17T04:02:06.243",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.6,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 4.7,
        "source": "ics-cert@hq.dhs.gov",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-38441",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-16T15:52:59.608466Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-05-05T17:15:09.537",
  "references": [
    {
      "source": "ics-cert@hq.dhs.gov",
      "tags": [
        "Product"
      ],
      "url": "https://projects.eclipse.org/projects/iot.cyclonedds"
    },
    {
      "source": "ics-cert@hq.dhs.gov",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://projects.eclipse.org/projects/iot.cyclonedds"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02"
    }
  ],
  "sourceIdentifier": "ics-cert@hq.dhs.gov",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-123"
        }
      ],
      "source": "ics-cert@hq.dhs.gov",
      "type": "Secondary"
    }
  ]
}

GHSA-9V3V-PQHW-3FHR

Vulnerability from github – Published: 2022-05-06 00:00 – Updated: 2022-05-14 00:03

Details

Eclipse CycloneDDS versions prior to 0.8.0 are vulnerable to a write-what-where condition, which may allow an attacker to write arbitrary values in the XML parser.

Severity

9.8 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-38441"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-123"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-05-05T17:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Eclipse CycloneDDS versions prior to 0.8.0 are vulnerable to a write-what-where condition, which may allow an attacker to write arbitrary values in the XML parser.",
  "id": "GHSA-9v3v-pqhw-3fhr",
  "modified": "2022-05-14T00:03:34Z",
  "published": "2022-05-06T00:00:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38441"
    },
    {
      "type": "WEB",
      "url": "https://projects.eclipse.org/projects/iot.cyclonedds"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2021-38441

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Eclipse CycloneDDS versions prior to 0.8.0 are vulnerable to a write-what-where condition, which may allow an attacker to write arbitrary values in the XML parser.

Aliases

CVE-2021-38441

Aliases

CVE-2021-38441

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-38441",
    "description": "Eclipse CycloneDDS versions prior to 0.8.0 are vulnerable to a write-what-where condition, which may allow an attacker to write arbitrary values in the XML parser.",
    "id": "GSD-2021-38441"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-38441"
      ],
      "details": "Eclipse CycloneDDS versions prior to 0.8.0 are vulnerable to a write-what-where condition, which may allow an attacker to write arbitrary values in the XML parser.",
      "id": "GSD-2021-38441",
      "modified": "2023-12-13T01:23:17.564385Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ASSIGNER": "ics-cert@hq.dhs.gov",
        "ID": "CVE-2021-38441",
        "STATE": "PUBLIC",
        "TITLE": "Eclipse CycloneDDS Write-what-where Condition"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "CycloneDDS",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "0.8.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Eclipse"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Federico Maggi (Trend Micro Research), Ta-Lun Yen, and Chizuru Toyama (TXOne Networks, Trend Micro) reported these vulnerabilities to CISA. In addition, Patrick Kuo, Mars Cheng (TXOne Networks, Trend Micro), V\u00edctor Mayoral-Vilches (Alias Robotics), and Erik Boasson (ADLINK Technology) also contributed to this research."
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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      },
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                "value": "CWE-123 Write-what-where Condition"
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      },
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          },
          {
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          "value": "Eclipse recommends users apply the latest CycloneDDS patches.\nhttps://projects.eclipse.org/projects/iot.cyclonedds"
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                "US Government Resource"
              ],
              "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02"
            },
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              "name": "https://projects.eclipse.org/projects/iot.cyclonedds",
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              "tags": [
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              ],
              "url": "https://projects.eclipse.org/projects/iot.cyclonedds"
            }
          ]
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      },
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            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
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          "obtainAllPrivilege": false,
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        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
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            "confidentialityImpact": "HIGH",
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            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-05-13T03:53Z",
      "publishedDate": "2022-05-05T17:15Z"
    }
  }
}

ICSA-21-315-02

Vulnerability from csaf_cisa - Published: 2021-11-11 00:00 - Updated: 2022-02-01 00:00

Summary

Multiple Data Distribution Service (DDS) Implementations (Update A)

Scope

13 vulnerabilities in this advisory, including CVE-2021-38441.

CVE-2021-38441

6.6 (Medium)


                
                  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

Known affected: 7 products

https://projects.eclipse.org/projects/iot.cyclonedds https://github.com/eProsima/Fast-DDS https://opendds.org/

Open the full advisory

UBUNTU-CVE-2021-38441 (CVE-2021-38441)

Vulnerability from osv_ubuntu – Published: 2022-05-05 17:15 – Updated: 2026-10-17 09:08 – Source website

Details

Eclipse CycloneDDS versions prior to 0.8.0 are vulnerable to a write-what-where condition, which may allow an attacker to write arbitrary values in the XML parser.

Severity

6.6 (Medium)


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

9.8 (Critical)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-38441	REPORT
	https://www.cisa.gov/uscert/ics/advisories/icsa-2…	REPORT
	https://projects.eclipse.org/projects/iot.cyclonedds	REPORT
	https://www.cve.org/CVERecord?id=CVE-2021-38441	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cyclonedds-tools",
            "binary_version": "0.8.2-5"
          },
          {
            "binary_name": "libcycloneddsidl0",
            "binary_version": "0.8.2-5"
          },
          {
            "binary_name": "libddsc0",
            "binary_version": "0.8.2-5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "cyclonedds",
        "purl": "pkg:deb/ubuntu/cyclonedds@0.8.2-5?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.7.0-7",
        "0.8.1-4",
        "0.8.1-4build1",
        "0.8.1-5",
        "0.8.2-1",
        "0.8.2-4",
        "0.8.2-5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cyclonedds-tools",
            "binary_version": "0.10.4-1.1build3"
          },
          {
            "binary_name": "libcycloneddsidl0t64",
            "binary_version": "0.10.4-1.1build3"
          },
          {
            "binary_name": "libddsc0t64",
            "binary_version": "0.10.4-1.1build3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "cyclonedds",
        "purl": "pkg:deb/ubuntu/cyclonedds@0.10.4-1.1build3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10.3-2",
        "0.10.4-1",
        "0.10.4-1.1",
        "0.10.4-1.1build1",
        "0.10.4-1.1build2",
        "0.10.4-1.1build3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cyclonedds-tools",
            "binary_version": "0.10.5-1"
          },
          {
            "binary_name": "libcycloneddsidl0t64",
            "binary_version": "0.10.5-1"
          },
          {
            "binary_name": "libddsc0t64",
            "binary_version": "0.10.5-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "cyclonedds",
        "purl": "pkg:deb/ubuntu/cyclonedds@0.10.5-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cyclonedds-tools",
            "binary_version": "0.10.5-1build2"
          },
          {
            "binary_name": "libcycloneddsidl0t64",
            "binary_version": "0.10.5-1build2"
          },
          {
            "binary_name": "libddsc0t64",
            "binary_version": "0.10.5-1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "cyclonedds",
        "purl": "pkg:deb/ubuntu/cyclonedds@0.10.5-1build2?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "0.10.5-1build2"
      ]
    },
    {
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        "binaries": [
          {
            "binary_name": "cyclonedds-tools",
            "binary_version": "0.10.5-1build1"
          },
          {
            "binary_name": "libcycloneddsidl0t64",
            "binary_version": "0.10.5-1build1"
          },
          {
            "binary_name": "libddsc0t64",
            "binary_version": "0.10.5-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "cyclonedds",
        "purl": "pkg:deb/ubuntu/cyclonedds@0.10.5-1build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
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            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "0.10.5-1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "Eclipse CycloneDDS versions prior to 0.8.0 are vulnerable to a write-what-where condition, which may allow an attacker to write arbitrary values in the XML parser.",
  "id": "UBUNTU-CVE-2021-38441",
  "modified": "2026-10-17T09:08:32Z",
  "published": "2022-05-05T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-38441"
    },
    {
      "type": "REPORT",
      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02"
    },
    {
      "type": "REPORT",
      "url": "https://projects.eclipse.org/projects/iot.cyclonedds"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-38441"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-38441"
  ]
}

Sightings

Author	Source	Type	Date	Other

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2021-38441 (GCVE-0-2021-38441)

FKIE_CVE-2021-38441

GHSA-9V3V-PQHW-3FHR

GSD-2021-38441

ICSA-21-315-02

UBUNTU-CVE-2021-38441 (CVE-2021-38441)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour