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CVE-2026-84121

Опубликовано: 01 сент. 2026
Источник: redhat
CVSS3: 7.5

Описание

Sandbox escape due to use-after-free in the DOM: Security component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to use-after-free in the DOM: Security component

Отчет

Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10firefoxAffected
Red Hat Enterprise Linux 10rhel10/firefox-flatpakAffected
Red Hat Enterprise Linux 10rhel10/thunderbird-flatpakAffected
Red Hat Enterprise Linux 10thunderbirdAffected
Red Hat Enterprise Linux 6firefoxOut of support scope
Red Hat Enterprise Linux 6thunderbirdOut of support scope
Red Hat Enterprise Linux 7firefoxAffected
Red Hat Enterprise Linux 7thunderbirdOut of support scope
Red Hat Enterprise Linux 8firefoxAffected
Red Hat Enterprise Linux 8thunderbirdAffected

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Дополнительная информация

Статус:

Important
Дефект:
CWE-825
https://bugzilla.redhat.com/show_bug.cgi?id=2526753firefox: Sandbox escape due to use-after-free in the DOM: Security component

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 9.6
ubuntu
15 дней назад

[Unknown description]

CVSS3: 9.6
nvd
15 дней назад

Sandbox escape due to use-after-free in the DOM: Security component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.

CVSS3: 9.6
debian
15 дней назад

Sandbox escape due to use-after-free in the DOM: Security component. T ...

CVSS3: 9.6
github
15 дней назад

Sandbox escape due to use-after-free in the DOM: Security component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2.

7.5 High

CVSS3