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CVE-2026-16383

🗓️ 21 Jul 2026 12:37:58Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov👁 6 Views

Mitigation bypass in the DOM networking component fixed in Firefox 153 and Firefox ESR 140.13.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-16383
21 Jul 202612:37
attackerkb
Cvelist
CVE-2026-16383 Mitigation bypass in the DOM: Networking component
21 Jul 202612:37
cvelist
Debian CVE
CVE-2026-16383
21 Jul 202612:37
debiancve
EUVD
EUVD-2026-46220
21 Jul 202612:37
euvd
NVD
CVE-2026-16383
21 Jul 202613:17
nvd
OSV
DEBIAN-CVE-2026-16383
21 Jul 202615:48
osv
Positive Technologies
PT-2026-61895
21 Jul 202600:00
ptsecurity
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.13",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "153",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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21 Jul 2026 18:31Current
5.3Medium risk
Vulners AI Score5.3
6