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CVE-2026-100780

🗓️ 29 Sep 2026 12:36:06Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov👁 86 Views

Use-after-free in the DOM: Core & HTML component.

Related
Detection
Affected
Refs
NVD
Node
OR
mozillafirefoxRange<157.0.0-
mozillafirefoxRange115.1.0–115.42.0esr
mozillafirefoxRange140.0–140.17.0esr
mozillafirefoxRange153.0–153.4.0esr
mozillathunderbirdRange<157.0-
mozillathunderbirdRange140.0–140.17.0esr
mozillathunderbirdRange153.0–153.4.0esr
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "115.42",
        "lessThanOrEqual": "115.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "140.17",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "153.4",
        "lessThanOrEqual": "153.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "157",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  },
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.17",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "153.4",
        "lessThanOrEqual": "153.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "157",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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05 Oct 2026 15:12Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.18.8
EPSS0.00319
SSVC
86