Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Update to Firefox 140.12.0 ESR MFSA 2026-58, bsc1268071: CVE-2026-12289: Privilege escalation in the Graphics: WebRender component. CVE-2026-12290: Memory safety bug fixed in Firefox ESR 140.12. CVE-2026-12291: Use-after-free in the...

firefox: thunderbird: Memory safety bug fixed in Firefox ESR 140.12

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Firefox ESR 140.12...

firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.37, Firefox ESR 140.12, Thunderbird ESR 140.12, Firefox 152 and Thunderbird 152

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 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory...

firefox: thunderbird: Memory safety bug fixed in Thunderbird ESR 140.12

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Thunderbird ESR 140.12...

firefox: thunderbird: Memory safety bug fixed in Thunderbird ESR 140.12

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Thunderbird ESR 140.12...

firefox: thunderbird: Memory safety bug fixed in Thunderbird ESR 140.12

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Thunderbird ESR 140.12...

Critical: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

firefox: Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these...

Vulnerability of the Networking component: Mozilla Firefox, Firefox ESR, and Thunderbird email client’s HTTP browsers allow attackers to bypass existing security restrictions.

The vulnerability of the Networking component: Mozilla Firefox, Firefox ESR, and the email client Thunderbird rely on bypassing the authentication process by using an alternative path or channel. Exploiting this vulnerability allows a malicious actor to circumvent existing security restrictions...

ROS-20260622-73-0014

The vulnerability of the Audio/Video components in Mozilla Firefox, Firefox ESR, and the email client Thunderbird relates to the execution of operations outside of the buffer in memory. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information...

Vulnerability of the WebRTC component: The signaling browsers Mozilla Firefox, Firefox ESR, and the email client Thunderbird, which allow attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the WebRTC component: The signaling browsers Mozilla Firefox, Firefox ESR, and the email client Thunderbird are vulnerable due to dependencies on behaviors that are uncertain for each type of implementation. Exploiting this vulnerability allows a malicious actor to compromise...

The vulnerability in the Layout component: Text and Fonts of Mozilla Firefox, Firefox ESR, and the email client Thunderbird, which allows a hacker to cause a service failure.

The vulnerability of the Layout component: Texts and fonts in Mozilla Firefox, Firefox ESR, and the email client Thunderbird are vulnerable due to insufficient testing for unusual or exceptional states. Exploiting this vulnerability can allow an attacker to cause service failures remotely...

ROS-20260622-73-0012

The vulnerability in Mozilla Firefox, Firefox ESR, and the email client Thunderbird relates to the execution of operations outside of the buffer in memory. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

ROS-20260622-73-0028

The vulnerability of Mozilla Firefox, Firefox ESR, and the email client Thunderbird relates to reading data beyond the buffer in memory. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

Multiple Mozilla Product Permissions Enhancement Vulnerabilities (CNVD-2026-26106)

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 was separated from the Mozilla Application Suite. Several Mozilla products have vulnerabilities related to privilege...

The vulnerability of Mozilla Firefox, Firefox ESR, and the email client Thunderbird relates to the execution of operations outside the buffer in memory. This allows an attacker to execute arbitrary code or cause a service failure.

The vulnerability in Mozilla Firefox, Firefox ESR, and the email client Thunderbird relates to the execution of operations outside the buffer in memory. Exploiting this vulnerability allows a remote attacker to execute arbitrary code or cause service interruptions...

Vulnerability of the DOM component: Device Interfaces of Mozilla Firefox, Firefox ESR, and the email client Thunderbird, which allow attackers to compromise the integrity and accessibility of protected information.

Vulnerability of the DOM component: Device interfaces of Mozilla Firefox, Firefox ESR, and the email client Thunderbird are vulnerable due to operations that go beyond the buffer in memory. Exploitation of this vulnerability can allow a remote attacker to compromise the integrity and accessibilit...

The vulnerability of Mozilla Firefox, Firefox ESR, and the email client Thunderbird relates to the execution of operations outside the buffer in memory. This allows an attacker to execute arbitrary code or cause a service failure.

The vulnerability in Mozilla Firefox, Firefox ESR, and the email client Thunderbird relates to the execution of operations outside the buffer in memory. Exploiting this vulnerability allows a remote attacker to execute arbitrary code or cause service interruptions...

The vulnerability in the library collection of NSS for Mozilla Firefox, Firefox ESR, and the email client Thunderbird allows a hacker to disclose protected information.

The vulnerability in the NSS libraries of Mozilla Firefox, Firefox ESR, and the email client Thunderbird relates to the execution of operations outside of the buffer in memory. Exploiting this vulnerability can allow a remote attacker to disclose sensitive information that is protected by these...

Vulnerability of the DOM component: Available in Mozilla Firefox, Firefox ESR, and Thunderbird email client browsers, allowing attackers to perform spoofing attacks.

The vulnerability of the DOM component: The Core and HTML browsers of Mozilla Firefox, Firefox ESR, and the email client Thunderbird are vulnerable to attacks that involve bypassing authentication procedures through spoofing. Exploiting this vulnerability allows attackers to carry out spoofing...