CVE-2025-11710

critical

Description

A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.

References

https://www.mozilla.org/security/advisories/mfsa2025-85/

https://www.mozilla.org/security/advisories/mfsa2025-84/

https://www.mozilla.org/security/advisories/mfsa2025-83/

https://www.mozilla.org/security/advisories/mfsa2025-82/

https://www.mozilla.org/security/advisories/mfsa2025-81/

https://bugzilla.mozilla.org/show_bug.cgi?id=1989899

Details

Source: Mitre, NVD

Published: 2025-10-14

Updated: 2025-10-17

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00024