FKIE_CVE-2026-7320

Vulnerability from fkie_nvd - Published: 2026-04-28 15:16 - Updated: 2026-05-01 12:32
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=2027433Permissions Required
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-35/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-36/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-37/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-38/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-39/Vendor Advisory
Impacted products
Vendor Product Version
mozilla firefox *
mozilla firefox *
mozilla firefox *
mozilla thunderbird *
mozilla thunderbird *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
              "matchCriteriaId": "FE4AC4E3-4332-49A9-9FA7-00274A5C32B2",
              "versionEndExcluding": "115.35.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "2256A965-6FB9-464D-9A25-F6DA1811686D",
              "versionEndExcluding": "150.0.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
              "matchCriteriaId": "EDA22B21-647B-4D1F-A591-8D650E59C942",
              "versionEndExcluding": "140.10.1",
              "versionStartIncluding": "128.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*",
              "matchCriteriaId": "1E82C76E-35A0-4513-A8A8-D20DAF8C7F4B",
              "versionEndExcluding": "140.10.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "C52D9F1F-104D-4A17-97C0-E4AA35DEF2AB",
              "versionEndExcluding": "150.0.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1."
    }
  ],
  "id": "CVE-2026-7320",
  "lastModified": "2026-05-01T12:32:05.890",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-28T15:16:37.447",
  "references": [
    {
      "source": "security@mozilla.org",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2027433"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
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      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-35/"
    },
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      "source": "security@mozilla.org",
      "tags": [
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      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-36/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-37/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
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      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-38/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
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      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-39/"
    }
  ],
  "sourceIdentifier": "security@mozilla.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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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

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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.


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