CVE-2026-5733

Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2...

CVE-2026-5732

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1...

CVE-2026-5731 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

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...

CVE-2026-5731

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...

CVE-2026-5731 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

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...

CVE-2026-5731

CVE-2026-5731 refers to memory-safety bugs across Mozilla Firefox/Thunderbird products. The initial entry lists memory corruption possibilities in Firefox ESR 115.34.0 and 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1, and Thunderbird 149.0.1, with fixes in Firefox 149.0.2, Firefox ESR 115.34...

RLSA-2026:5930 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-4701 firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR...

thunderbird security update

An update is available for thunderbird. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Mozilla Thunderbird is a standalone mail and newsgroup client. Security...

RLSA-2026:6188 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-4701 firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and...

RLSA-2026:5932 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-4701 firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR...

PT-2026-30822

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149.0.2 Firefox ESR versions prior to 115.34.1 and 140.9.1 Thunderbird versions prior to 149.0.2 and 140.9.1 Description Memory safety bugs are present in Firefox and Thunderbird, with some showing evidence of memory...

Mozilla Firefox和Mozilla Thunderbird 缓冲区错误漏洞

Mozilla Firefox and Mozilla Thunderbird are both products of the American Mozilla Foundation. Mozilla Firefox is an open-source web browser. Mozilla Thunderbird is an email client software that emerged independently from the Mozilla Application Suite. This software supports IMAP and POP email...

Mozilla多款产品 缓冲区错误漏洞

Mozilla Firefox, among others, are products of the American Mozilla Foundation. Mozilla Firefox is an open-source web browser. Mozilla Firefox ESR is a extended support version of Firefox the web browser. Mozilla Thunderbird is an email client software that emerged independently from the Mozilla...

RHEL 8 : thunderbird (RHSA-2026:6917)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:6917 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Use-after-free in the JavaScript Engine...

Mozilla Thunderbird < 140.9.1

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 140.9.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-29 advisory. - Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and...

Mozilla Thunderbird < 149.0.2

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 149.0.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-28 advisory. - Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed...

Mozilla Thunderbird < 149.0.2

The version of Thunderbird installed on the remote Windows host is prior to 149.0.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-28 advisory. - Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of...

RockyLinux 9 : thunderbird (RLSA-2026:6188)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:6188 advisory. firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-4701 firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.3...

Mozilla Firefox < 149.0.2

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 149.0.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-25 advisory. - Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox...

KLA90969 Multiple vulnerabilities in Mozilla Thunderbird ESR

Multiple vulnerabilities were found in Mozilla Thunderbird ESR. Malicious users can exploit these vulnerabilities to execute arbitrary code, cause denial of service. Below is a complete list of vulnerabilities: 1. Memory safety vulnerability can be exploited to execute arbitrary code. 2. Incorrec...