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Mozilla FirefoxMitigation bypass in the Safe Browsing component

Risk 59
Severity
8.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Mitigation bypass in the Safe Browsing component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

First published (updated )
CVE-2026-74957

Mozilla FirefoxSite isolation issue in the WebExtensions component

Risk 59
Severity
8.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Site isolation issue in the WebExtensions component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

First published (updated )
CVE-2026-74960

Mozilla FirefoxUse After Free

Risk 33
Severity
7
Use After Free

Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, and Firefox ESR 153.1.

First published (updated )
REDHAT-BUG-2517841

Mozilla FirefoxPrivilege escalation in the DOM: Networking component. This vulnerability was fixed in Firefox 154, …

Risk 33
Severity
7

Privilege escalation in the DOM: Networking component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, and Firefox ESR 153.1.

First published (updated )
REDHAT-BUG-2517874

Mozilla FirefoxPrivilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 154, …

Risk 33
Severity
7

Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, and Firefox ESR 153.1.

First published (updated )
REDHAT-BUG-2517860

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