CVE-2024-8381

mozilla: Type confusion when looking up a property name in a "with" block

Published Sep 3, 2024 CVSS 3.1 · 9.8 Critical EPSS 4.4% KEV · Not listed
Description
A potentially exploitable type confusion could be triggered when looking up a property name on an object being used as the `with` environment. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, Firefox ESR < 115.15, Thunderbird < 128.2, and Thunderbird < 115.15.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3869-1 firefox-esr security update
Debian DLA Debian DLA DLA-3882-1 thunderbird security update
Debian DSA Debian DSA DSA-5765-1 firefox-esr security update
Debian DSA Debian DSA DSA-5767-1 thunderbird security update
Ubuntu USN Ubuntu USN USN-6992-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-6995-1 Thunderbird vulnerabilities
History
Type Values Removed Values Added
Metrics epss

{'score': 0.16326}

epss

{'score': 0.20682}

Type Values Removed Values Added
CPEs cpe:/a:redhat:rhel_aus:8.6
cpe:/a:redhat:rhel_e4s:8.6
Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els
Type Values Removed Values Added
CPEs cpe:/a:redhat:rhel_tus:8.6
Type Values Removed Values Added
First Time appeared Redhat rhel Aus
Redhat rhel E4s
Redhat rhel Eus
Redhat rhel Tus
CPEs cpe:/a:redhat:rhel_aus:8.2
cpe:/a:redhat:rhel_aus:8.4
cpe:/a:redhat:rhel_e4s:8.4
cpe:/a:redhat:rhel_e4s:9.0
cpe:/a:redhat:rhel_eus:8.8
cpe:/a:redhat:rhel_eus:9.2
cpe:/a:redhat:rhel_tus:8.4
Vendors & Products Redhat rhel Aus
Redhat rhel E4s
Redhat rhel Eus
Redhat rhel Tus
Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Type Values Removed Values Added
Description A potentially exploitable type confusion could be triggered when looking up a property name on an object being used as the `with` environment. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Firefox ESR < 115.15. A potentially exploitable type confusion could be triggered when looking up a property name on an object being used as the `with` environment. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, Firefox ESR < 115.15, Thunderbird < 128.2, and Thunderbird < 115.15.
References
Type Values Removed Values Added
Title mozilla: Type confusion when looking up a property name in a &quot;with&quot; block
Weaknesses CWE-704
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Mozilla firefox Esr
Weaknesses CWE-843
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Vendors & Products Mozilla
Mozilla firefox
Mozilla firefox Esr
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A potentially exploitable type confusion could be triggered when looking up a property name on an object being used as the `with` environment. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Firefox ESR < 115.15.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Nov 4, 2025, 4:15 PM
Reserved
Sep 3, 2024, 6:39 AM
Status
Modified
Published
Sep 3, 2024, 1:15 PM
Modified
Jun 17, 2026, 8:22 AM
Severity
Important
Public date
Sep 3, 2024, 1:15 PM