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CVE-2026-5731

Опубликовано: 07 апр. 2026
Источник: debian
EPSS Низкий

Описание

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, Firefox ESR < 140.9.1, Thunderbird < 149.0.2, and Thunderbird < 140.9.1.

Пакеты

ПакетСтатусВерсия исправленияРелизТип
firefoxfixed149.0.2-1package
firefox-esrfixed140.9.1esr-1package
thunderbirdunfixedpackage

Примечания

  • https://www.mozilla.org/en-US/security/advisories/mfsa2026-25/#CVE-2026-5731

  • https://www.mozilla.org/en-US/security/advisories/mfsa2026-27/#CVE-2026-5731

  • https://www.mozilla.org/en-US/security/advisories/mfsa2026-29/#CVE-2026-5731

EPSS

Процентиль: 22%
0.00072
Низкий

Связанные уязвимости

CVSS3: 9.8
ubuntu
7 дней назад

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, Firefox ESR < 140.9.1, Thunderbird < 149.0.2, and Thunderbird < 140.9.1.

CVSS3: 8.8
redhat
7 дней назад

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, Firefox ESR < 140.9.1, Thunderbird < 149.0.2, and Thunderbird < 140.9.1.

CVSS3: 9.8
nvd
7 дней назад

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, Firefox ESR < 140.9.1, Thunderbird < 149.0.2, and Thunderbird < 140.9.1.

CVSS3: 9.8
github
7 дней назад

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, and Firefox ESR < 140.9.1.

CVSS3: 9.8
fstec
8 дней назад

Уязвимость браузеров Firefox, Firefox ESR и почтовых клиентов Thunderbird, Thunderbird ESR, связанная с выходом операции за границы буфера в памяти, позволяющая нарушителю выполнить произвольный код

EPSS

Процентиль: 22%
0.00072
Низкий