Search

Find a vulnerability

Search criteria ⓘ Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by date instead of relevance.

    2 vulnerabilities by bluedragonsecurity

    CVE-2026-27831 (GCVE-0-2026-27831)

    Vulnerability from nvd – Published: 2026-02-26 00:11 – Updated: 2026-02-27 15:24
    VLAI
    Title
    rldns Vulnerable to Heap-based Out-of-Bounds Read
    Summary
    rldns is an open source DNS server. Version 1.3 has a heap-based out-of-bounds read that leads to denial of service. Version 1.4 contains a patch for the issue.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-27831",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-26T15:14:43.983653Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T15:14:48.813Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "rldns",
          "vendor": "bluedragonsecurity",
          "versions": [
            {
              "status": "affected",
              "version": "= 1.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "rldns is an open source DNS server. Version 1.3 has a heap-based out-of-bounds read that leads to denial of service. Version 1.4 contains a patch for the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-27T15:24:12.727Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4"
        },
        {
          "name": "https://github.com/bluedragonsecurity/rldns-1.3-heap-out-of-bounds-vulnerability-fixed-in-rldns-1.4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/bluedragonsecurity/rldns-1.3-heap-out-of-bounds-vulnerability-fixed-in-rldns-1.4"
        },
        {
          "name": "https://github.com/bluedragonsecurity/rldns_archives/blob/main/diff/rldns-1.4.diff",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/bluedragonsecurity/rldns_archives/blob/main/diff/rldns-1.4.diff"
        },
        {
          "name": "https://medium.com/@w1sdom/heap-based-buffer-over-read-vulnerability-in-rldns-1-3-5da3bccdc031",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://medium.com/@w1sdom/heap-based-buffer-over-read-vulnerability-in-rldns-1-3-5da3bccdc031"
        }
      ],
      "source": {
        "advisory": "GHSA-fv38-45j4-g9x4",
        "discovery": "UNKNOWN"
      },
      "title": "rldns Vulnerable to Heap-based Out-of-Bounds Read"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-27831",
    "datePublished": "2026-02-26T00:11:45.608Z",
    "dateReserved": "2026-02-24T02:32:39.800Z",
    "dateUpdated": "2026-02-27T15:24:12.727Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-27831 (GCVE-0-2026-27831)

    Vulnerability from cvelistv5 – Published: 2026-02-26 00:11 – Updated: 2026-02-27 15:24
    VLAI
    Title
    rldns Vulnerable to Heap-based Out-of-Bounds Read
    Summary
    rldns is an open source DNS server. Version 1.3 has a heap-based out-of-bounds read that leads to denial of service. Version 1.4 contains a patch for the issue.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-27831",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-26T15:14:43.983653Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T15:14:48.813Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "rldns",
          "vendor": "bluedragonsecurity",
          "versions": [
            {
              "status": "affected",
              "version": "= 1.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "rldns is an open source DNS server. Version 1.3 has a heap-based out-of-bounds read that leads to denial of service. Version 1.4 contains a patch for the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-27T15:24:12.727Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4"
        },
        {
          "name": "https://github.com/bluedragonsecurity/rldns-1.3-heap-out-of-bounds-vulnerability-fixed-in-rldns-1.4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/bluedragonsecurity/rldns-1.3-heap-out-of-bounds-vulnerability-fixed-in-rldns-1.4"
        },
        {
          "name": "https://github.com/bluedragonsecurity/rldns_archives/blob/main/diff/rldns-1.4.diff",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/bluedragonsecurity/rldns_archives/blob/main/diff/rldns-1.4.diff"
        },
        {
          "name": "https://medium.com/@w1sdom/heap-based-buffer-over-read-vulnerability-in-rldns-1-3-5da3bccdc031",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://medium.com/@w1sdom/heap-based-buffer-over-read-vulnerability-in-rldns-1-3-5da3bccdc031"
        }
      ],
      "source": {
        "advisory": "GHSA-fv38-45j4-g9x4",
        "discovery": "UNKNOWN"
      },
      "title": "rldns Vulnerable to Heap-based Out-of-Bounds Read"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-27831",
    "datePublished": "2026-02-26T00:11:45.608Z",
    "dateReserved": "2026-02-24T02:32:39.800Z",
    "dateUpdated": "2026-02-27T15:24:12.727Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}