Mozilla Firefox and Firefox ESR Security Bypass Vulnerability (CNVD-2025-15490)

Mozilla Firefox is an open source web browser.Mozilla Firefox ESR is an extended support version of Firefox web browser. A security bypass vulnerability exists in Mozilla Firefox and Firefox ESR, which can be exploited by attackers to bypass security restrictions...

OPENSUSE-SU-2025:15216-1 firefox-esr-128.12.0-1.1 on GA media

These are all security issues fixed in the firefox-esr-128.12.0-1.1 package on the GA media of openSUSE Tumbleweed...

The vulnerability in the WebCompat extension of Mozilla browsers, including Mozilla Firefox and Firefox ESR, allows attackers to disclose protected information.

The vulnerability of the WebCompat extension in Mozilla Firefox and Firefox ESR browsers is related to insufficient protection for service data. Exploiting this vulnerability can allow a malicious actor to disclose protected information remotely...

Debian: Security Advisory (DLA-4231-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

[SECURITY] [DLA 4231-1] firefox-esr security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4231-1 [email protected] https://www.debian.org/lts/security/ Emilio Pozuelo Monfort June 26, 2025 https://wiki.debian.org/LTS -...

Debian dla-4231 : firefox-esr - security update

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4231 advisory. - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4231-1 [email protected]...

DLA-4231-1 firefox-esr - security update

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Debian dsa-5950 : firefox-esr - security update

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5950 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-5950-1 [email protected] https://www.debian.org/securit...

[SECURITY] [DSA 5950-1] firefox-esr security update

------------------------------------------------------------------------- Debian Security Advisory DSA-5950-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff June 25, 2025 https://www.debian.org/security/faq -...

Mozilla Firefox ESR Security Update (mfsa_2025-52) - Mac OS X

Mozilla Firefox ESR is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:mozilla:firefoxesr";...

Mozilla Firefox ESR Security Update (mfsa_2025-53) - Mac OS X

Mozilla Firefox ESR is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:mozilla:firefoxesr";...

Mozilla Firefox ESR Security Update (mfsa_2025-53) - Windows

Mozilla Firefox ESR is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:mozilla:firefoxesr";...

DSA-5950-1 firefox-esr - security update

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Mozilla Firefox ESR Security Update (mfsa_2025-52) - Windows

Mozilla Firefox ESR is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:mozilla:firefoxesr";...

CVE-2025-6426

The executable file warning did not warn users before opening files with the terminal extension. This bug only affects Firefox for macOS. Other versions of Firefox are unaffected.. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12...

CVE-2025-6425

An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR...

CVE-2025-6430 Content-Disposition header ignored when a file is included in an embed or object tag

When a file download is specified via the Content-Disposition header, that directive would be ignored if the file was included via a embed or object tag, potentially making a website vulnerable to a cross-site scripting attack. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12,...

CVE-2025-6426

The executable file warning did not warn users before opening files with the terminal extension. This bug only affects Firefox for macOS. Other versions of Firefox are unaffected.. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12...

CVE-2025-6425 The WebCompat WebExtension shipped with Firefox exposed a persistent UUID

An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR...

KLA85320 Multiple vulnerabilities in Mozillla Firefox ESR

Multiple vulnerabilities were found in Mozillla Firefox ESR. Malicious users can exploit these vulnerabilities to bypass security restrictions, execute arbitrary code, cause denial of service. Below is a complete list of vulnerabilities: 1. Security vulnerability can be exploited to bypass securi...