CVE-2026-16351

{
  "id": "CVE-2026-16351",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-21T13:17:03.577",
  "lastModified": "2026-10-24T20:10:00.137",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13."
    },
    {
      "lang": "es",
      "value": "Escape de sandbox debido a uso después de liberación en el DOM: Componente de navegación. Esta vulnerabilidad fue corregida en Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153 y Thunderbird 140.13."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
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            {
              "version": "115.38",
              "lessThanOrEqual": "115.*",
              "versionType": "rpm",
              "status": "unaffected"
            },
            {
              "version": "140.13",
              "lessThanOrEqual": "140.*",
              "versionType": "rpm",
              "status": "unaffected"
            },
            {
              "version": "153",
              "lessThanOrEqual": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Mozilla",
          "product": "Thunderbird",
          "versions": [
            {
              "version": "140.13",
              "lessThanOrEqual": "140.*",
              "versionType": "rpm",
              "status": "unaffected"
            },
            {
              "version": "153",
              "lessThanOrEqual": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
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          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
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        "ssvcData": {
          "timestamp": "2026-07-22T15:21:54.902342Z",
          "id": "CVE-2026-16351",
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              "exploitation": "none"
            },
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              "automatable": "yes"
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              "technicalImpact": "total"
            }
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      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
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  "references": [
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2045468",
      "source": "[email protected]",
      "tags": [
        "Permissions Required"
      ]
    },
    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-68/",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
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    },
    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-69/",
      "source": "[email protected]",
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    },
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      "source": "[email protected]",
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      "url": "https://www.mozilla.org/security/advisories/mfsa2026-71/",
      "source": "[email protected]",
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      "url": "https://www.mozilla.org/security/advisories/mfsa2026-72/",
      "source": "[email protected]",
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}