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CVE-2026-109780

🗓️ 13 Oct 2026 12:29:35Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov👁 21 Views

Mitigation bypass in the Firefox Core & HTML component.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-109780
13 Oct 202613:43
–circl
cvelist
Cvelist
CVE-2026-109780 Mitigation bypass in the DOM: Core & HTML component
13 Oct 202612:29
–cvelist
debiancve
Debian CVE
CVE-2026-109780
13 Oct 202612:29
–debiancve
euvd
EUVD
EUVD-2026-98540
13 Oct 202612:29
–euvd
nessus
Tenable Nessus
Fedora 44 : firefox (2026-469a21a80e)
14 Oct 202600:00
–nessus
nessus
Tenable Nessus
Fedora 45 : thunderbird (2026-6e46e724e6)
31 Oct 202600:00
–nessus
nessus
Tenable Nessus
Fedora 43 : thunderbird (2026-cce5679e8f)
24 Oct 202600:00
–nessus
nessus
Tenable Nessus
Fedora 43 : firefox (2026-f158b66a66)
24 Oct 202600:00
–nessus
nessus
Tenable Nessus
Fedora 44 : thunderbird (2026-fe87bcd73d)
19 Oct 202600:00
–nessus
nessus
Tenable Nessus
Mozilla Firefox < 158.0
13 Oct 202600:00
–nessus
Rows per page
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "158",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  },
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "158",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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26 Oct 2026 20:17Current
6Medium risk
Vulners AI Score6
CVSS 3.19.8
EPSS0.00363
SSVC
21