CVE-2026-6784 Memory safety bugs fixed in Firefox 150 and Thunderbird 150

Memory safety bugs present in Firefox 149 and Thunderbird 149. 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 150 and Thunderbird 150...

CVE-2026-6785

Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. 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...

MGASA-2026-0106 Updated firefox & thunderbird packages fix security vulnerabilities

Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2. CVE-2026-5731 Incorrect boundary conditions, integer overflow in the Graphics: Text component. CVE-2026-5732 Memory safety bugs fixed in Firefox ESR 140.9.1,...

Mozilla Firefox ESR < 140.10

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 140.10. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-32 advisory. - Memory safety bugs present in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149...

Mozilla Firefox ESR < 140.10

The version of Firefox ESR installed on the remote Windows host is prior to 140.10. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-32 advisory. - Memory safety bugs present in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of...

Security Vulnerabilities fixed in Firefox 150 — Mozilla

Memory safety bugs present in Firefox 149 and Thunderbird 149. 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. Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9,...

ALSA-2026:9345 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: libpng: libpng: Arbitrary code execution due to use-after-free vulnerability CVE-2026-33416 libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion...

Mozilla Firefox ESR < 115.35

The version of Firefox ESR installed on the remote Windows host is prior to 115.35. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-31 advisory. - Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140....

Security Vulnerabilities fixed in Firefox ESR 140.10 — Mozilla

Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. 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. Memory safety...

Mozilla Firefox < 150.0

The version of Firefox installed on the remote Windows host is prior to 150.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-30 advisory. - Incorrect boundary conditions, integer overflow in the Audio/Video: Playback component. This vulnerability was fixed i...

Mozilla -- Memory safety bugs

https://bugzilla.mozilla.org/buglist.cgi?bugid=2010727%2C2019004%2C2019224%2C2019547%2C2020378%2C2022381%2C2022608%2C2022785%2C2023120%2C2023128%2C2023140%2C2023279%2C2023836%2C2023882%2C2023925%2C2023950%2C2023959%2C2023965%2C2024243%2C2024245%2C2024247%2C2024253%2C2024346%2C2024357%2C2024416%2C...

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: libpng: libpng: Arbitrary code execution due to use-after-free vulnerability CVE-2026-33416 libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion...

PT-2026-33970

Name of the Vulnerable Software and Affected Versions Firefox version 149 Thunderbird version 149 Description Memory safety bugs involving memory corruption and out-of-bounds reads exist in the software. These issues could allow an unauthenticated remote attacker to execute arbitrary code on the...

Security Vulnerabilities fixed in Thunderbird 150 — Mozilla

Memory safety bugs present in Firefox 149 and Thunderbird 149. 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. Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9,...

MiracleLinux 8 : firefox-140.9.1-1.el8_10.ML.1 (AXSA:2026-480:08)

The remote MiracleLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2026-480:08 advisory. libpng: libpng: Arbitrary code execution due to use-after-free vulnerability CVE-2026-33416 libpng: libpng: Information disclosure and denial of...

RLSA-2026:8459 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: libpng: libpng: Arbitrary code execution due to use-after-free vulnerability CVE-2026-33416 libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion...

MiracleLinux 8 : thunderbird-140.9.0-1.el8_10.ML.1 (AXSA:2026-444:07)

The remote MiracleLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2026-444:07 advisory. firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-4701 firefox: thunderbird: Memory safety bugs fixed in Firefox ESR...

thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: 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...

thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in 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 w...

RLSA-2026:8052 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: libpng: libpng: Arbitrary code execution due to use-after-free vulnerability CVE-2026-33416 libpng: libpng: Information disclosure and denial of service via out-of-bound...