fkie_cve-2025-8037
Vulnerability from fkie_nvd
Published
2025-07-22 21:15
Modified
2025-07-28 18:51
Severity ?
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
Setting a nameless cookie with an equals sign in the value shadowed other cookies. Even if the nameless cookie was set over HTTP and the shadowed cookie included the `Secure` attribute. This vulnerability affects Firefox < 141, Firefox ESR < 140.1, Thunderbird < 141, and Thunderbird < 140.1.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1964767Permissions Required
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-56/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-59/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-61/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-63/Vendor Advisory
Impacted products
Vendor Product Version
mozilla firefox *
mozilla firefox *
mozilla thunderbird *
mozilla thunderbird *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
              "matchCriteriaId": "260CDC56-79EC-44BF-9555-BB4321552203",
              "versionEndExcluding": "140.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "8684A46E-D70A-4830-8971-A6DCC360F422",
              "versionEndExcluding": "141.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*",
              "matchCriteriaId": "99498D75-7441-458F-9C53-6ABCC7ED9AEC",
              "versionEndExcluding": "140.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "95D506DD-BD9B-4D90-802F-5BE673F1CF14",
              "versionEndExcluding": "141.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Setting a nameless cookie with an equals sign in the value shadowed other cookies. Even if the nameless cookie was set over HTTP and the shadowed cookie included the `Secure` attribute. This vulnerability affects Firefox \u003c 141, Firefox ESR \u003c 140.1, Thunderbird \u003c 141, and Thunderbird \u003c 140.1."
    },
    {
      "lang": "es",
      "value": "Al configurar una cookie sin nombre con un signo igual en su valor, se eclipsaban otras cookies. Incluso si la cookie sin nombre se configuraba mediante HTTP y la cookie eclipsada inclu\u00eda el atributo \"Secure\". Esta vulnerabilidad afecta a Firefox \u0026lt; 141, Firefox ESR \u0026lt; 140.1, Thunderbird \u0026lt; 141 y Thunderbird \u0026lt; 140.1."
    }
  ],
  "id": "CVE-2025-8037",
  "lastModified": "2025-07-28T18:51:21.220",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 9.1,
          "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:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-07-22T21:15:50.860",
  "references": [
    {
      "source": "security@mozilla.org",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1964767"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-56/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-59/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-61/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-63/"
    }
  ],
  "sourceIdentifier": "security@mozilla.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-614"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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