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CVE-2026-92021

🗓️ 15 Sep 2026 12:33:41Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov👁 8 Views

Use-after-free in Firefox ESR JavaScript Engine JIT component, fixed in 140.16.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-92021 Use-after-free in the JavaScript Engine: JIT component
15 Sep 202612:33
cvelist
debiancve
Debian CVE
CVE-2026-92021
15 Sep 202612:33
debiancve
euvd
EUVD
EUVD-2026-78484
15 Sep 202612:33
euvd
nessus
Tenable Nessus
Mozilla Firefox ESR < 140.16
15 Sep 202600:00
nessus
nessus
Tenable Nessus
Mozilla Firefox ESR < 140.16
15 Sep 202600:00
nessus
mozilla
Mozilla
Security Vulnerabilities fixed in Firefox ESR 140.16 — Mozilla
15 Sep 202600:00
mozilla
nvd
NVD
CVE-2026-92021
15 Sep 202613:16
nvd
osv
OSV
DEBIAN-CVE-2026-92021
15 Sep 202613:16
osv
ptsecurity
Positive Technologies
PT-2026-91957
15 Sep 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-92021
16 Sep 202610:56
redhatcve
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.16",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  },
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.16",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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15 Sep 2026 20:19Current
5.8Medium risk
Vulners AI Score5.8
EPSS0.0015
8