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CVE-2026-84145

🗓️ 01 Sep 2026 12:18:43Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 39 Views

Memory corruption and security bugs in Firefox 154/ESR fixed in 155 and later ESR releases.

Related
Detection
Affected
Refs
Social
NVD
Node
OR
mozillafirefoxRange<115.40.0
mozillafirefoxRange116.0140.15.0
mozillafirefoxRange141.0.0153.2.0
mozillafirefoxRange154.0.0155.0.0
mozillathunderbirdRange<140.15.0
mozillathunderbirdRange141.0153.2.0
mozillathunderbirdRange154.0155.0
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "115.40",
        "lessThanOrEqual": "115.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "140.15",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "153.2",
        "lessThanOrEqual": "153.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "155",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  },
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.15",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "153.2",
        "lessThanOrEqual": "153.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "155",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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03 Sep 2026 12:49Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
EPSS0.0037
SSVC
39