CVE-2025-27809 (GCVE-0-2025-27809)

Vulnerability from cvelistv5 – Published: 2025-03-25 00:00 – Updated: 2025-03-25 16:49
VLAI
Summary
Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtls_ssl_set_hostname.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-25 14:41 UTC
CWE
  • CWE-1188 - Initialization of a Resource with an Insecure Default
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2339 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
Mbed mbedtls Affected: 0 , < 2.28.10 (semver)
Affected: 3.0.0 , < 3.6.3 (semver)
    cpe:2.3:a:mbed:mbedtls:*:*:*:*:*:*:*:*
    cpe:2.3:a:mbed:mbedtls:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-27809",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-25T14:41:49.022536Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-25T14:42:17.226Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-03-25T16:49:13.269Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://mastodon.social/@bagder/114219540623402700"
          },
          {
            "url": "https://github.com/Mbed-TLS/mbedtls/issues/466"
          }
        ],
        "title": "CVE Program Container",
        "x_generator": {
          "engine": "ADPogram 0.0.1"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "mbedtls",
          "vendor": "Mbed",
          "versions": [
            {
              "lessThan": "2.28.10",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "3.6.3",
              "status": "affected",
              "version": "3.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:mbed:mbedtls:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "2.28.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:mbed:mbedtls:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "3.6.3",
                  "versionStartIncluding": "3.0.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtls_ssl_set_hostname."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1188",
              "description": "CWE-1188 Initialization of a Resource with an Insecure Default",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-03-25T05:33:08.068Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/Mbed-TLS/mbedtls/releases"
        },
        {
          "url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-03-1/"
        }
      ],
      "x_generator": {
        "engine": "enrichogram 0.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2025-27809",
    "datePublished": "2025-03-25T00:00:00.000Z",
    "dateReserved": "2025-03-07T00:00:00.000Z",
    "dateUpdated": "2025-03-25T16:49:13.269Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-27809",
      "date": "2026-10-17",
      "epss": "0.00197",
      "percentile": "0.08842"
    },
    "microsoft_vex": {
      "current_release_date": "2026-02-18T02:56:16.000Z",
      "cve": "CVE-2025-27809",
      "id": "msrc_CVE-2025-27809",
      "initial_release_date": "2025-03-02T00:00:00.000Z",
      "product_status:known_not_affected": "3",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtls_ssl_set_hostname.",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-27809.json",
      "version": "2"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "mbedtls",
                "vendor": "Mbed",
                "versions": [
                  {
                    "lessThan": "2.28.10",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "3.6.3",
                    "status": "affected",
                    "version": "3.0.0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "cve@mitre.org"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DD0A913D-2765-4EE6-8C44-59214EFCAD03",
                    "versionEndExcluding": "2.28.10",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B8253337-97A1-4B7E-A0D4-31AFBA7A20F6",
                    "versionEndExcluding": "3.6.3",
                    "versionStartIncluding": "3.0.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtls_ssl_set_hostname."
          },
          {
            "lang": "es",
            "value": "Mbed TLS anterior a 2.28.10 y 3.x anterior a 3.6.3, en el lado del cliente, acepta servidores que tienen certificados confiables para nombres de host arbitrarios a menos que la aplicaci\u00f3n cliente TLS llame a mbedtls_ssl_set_hostname."
          }
        ],
        "id": "CVE-2025-27809",
        "lastModified": "2026-06-17T09:04:15.590",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.4,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 2.7,
              "source": "cve@mitre.org",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2025-27809",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-25T14:41:49.022536Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-03-25T06:15:41.000",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Release Notes"
            ],
            "url": "https://github.com/Mbed-TLS/mbedtls/releases"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-03-1/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking"
            ],
            "url": "https://github.com/Mbed-TLS/mbedtls/issues/466"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Not Applicable"
            ],
            "url": "https://mastodon.social/@bagder/114219540623402700"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-1188"
              }
            ],
            "source": "cve@mitre.org",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-05-28T17:39:54+00:00",
      "cve": "CVE-2025-27809",
      "id": "CVE-2025-27809",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2025-27809",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-27809.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2025-03-25T16:49:13.269Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "url": "https://mastodon.social/@bagder/114219540623402700"
              },
              {
                "url": "https://github.com/Mbed-TLS/mbedtls/issues/466"
              }
            ],
            "title": "CVE Program Container",
            "x_generator": {
              "engine": "ADPogram 0.0.1"
            }
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2025-27809",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-03-25T14:41:49.022536Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-03-25T14:42:13.023Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "mbedtls",
              "vendor": "Mbed",
              "versions": [
                {
                  "lessThan": "2.28.10",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "3.6.3",
                  "status": "affected",
                  "version": "3.0.0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:a:mbed:mbedtls:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "2.28.10",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:mbed:mbedtls:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "3.6.3",
                      "versionStartIncluding": "3.0.0",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtls_ssl_set_hostname."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 5.4,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-1188",
                  "description": "CWE-1188 Initialization of a Resource with an Insecure Default",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-03-25T05:33:08.068Z",
            "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
            "shortName": "mitre"
          },
          "references": [
            {
              "url": "https://github.com/Mbed-TLS/mbedtls/releases"
            },
            {
              "url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-03-1/"
            }
          ],
          "x_generator": {
            "engine": "enrichogram 0.0.1"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "cveId": "CVE-2025-27809",
        "datePublished": "2025-03-25T00:00:00.000Z",
        "dateReserved": "2025-03-07T00:00:00.000Z",
        "dateUpdated": "2025-03-25T16:49:13.269Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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

JSON
Events included in the timeline

Loading timeline…


    Loading…

    Loading…

    Loading…

    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.