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ALSA-2025:18154 — Important: firefox security update

2026-10-04T20:00:43.971316+00:00

Affected: AlmaLinux:10: firefox

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

* thunderbird: firefox: Memory safety bugs (CVE-2025-11714) * thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709) * thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710) * thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708) * thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712) * thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715) * thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2025-13249

2026-10-04T20:00:43.971396+00:00

bdu:2025-13249

certfr-2025-avi-0873 — De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un atta…

2026-10-04T20:00:43.971421+00:00

certfr-2025-avi-0873

cnvd-2025-24621

2026-10-04T20:00:43.971438+00:00

cnvd-2025-24621

EUVD-2026-290763

2026-10-04T20:00:43.971450+00:00

EUVD-2026-290763

fkie_cve-2025-11715

2026-10-04T20:00:43.971460+00:00

Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. 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 was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.

GHSA-vpvq-m4pf-x2cp

2026-10-04T20:00:43.971483+00:00

Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. 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 < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.

OESA-2025-2476 — firefox security update

2026-10-04T20:00:43.971500+00:00

Affected: openEuler:24.03-LTS-SP1: firefox

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo Security Fix(es):

Use-after-free vulnerability in MediaTrackGraphImpl::GetInstance(). This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11708)

A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11709)

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.(CVE-2025-11710)

There was a way to change the value of JavaScript Object properties that were supposed to be non-writeabl…

openSUSE-SU-2025:15632-1 — firefox-esr-140.4.0-1.1 on GA media

2026-10-04T20:00:43.971542+00:00

firefox-esr-140.4.0-1.1 on GA media

RHSA-2025:18154 — Red Hat Security Advisory: firefox security update

2026-10-04T20:00:43.971565+00:00

thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures thunderbird: firefox: Cross-process information leaked due to malicious IPC messages thunderbird: firefox: Some non-writable Object properties could be modified thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type thunderbird: firefox: Memory safety bugs thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144

SUSE-SU-2025:21021-1 — Security update for MozillaFirefox

2026-10-04T20:00:43.971593+00:00

Security update for MozillaFirefox

UBUNTU-CVE-2025-11715

2026-10-04T20:00:43.971618+00:00

Affected: Ubuntu:18.04:LTS: mozjs52, Ubuntu:18.04:LTS: mozjs38, Ubuntu:20.04:LTS: mozjs68, Ubuntu:20.04:LTS: mozjs52, Ubuntu:22.04:LTS: mozjs102, Ubuntu:22.04:LTS: mozjs78, Ubuntu:22.04:LTS: mozjs91, Ubuntu:22.04:LTS: thunderbird, Ubuntu:24.04:LTS: mozjs102, Ubuntu:24.04:LTS: mozjs115

WID-SEC-W-2025-2275 — Mozilla Firefox: Mehrere Schwachstellen

2026-10-04T20:00:43.971651+00:00

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mozilla Firefox, Mozilla Firefox ESR und Mozilla Thunderbird ausnutzen, um Code ausführen, privilegierte Informationen auslesen, Sicherheitsmechanismen umgehen oder Benutzer durch UI-Manipulation täuschen.