Google patches high-severity Chrome vulnerability CVE-2023-1234

Mozilla Fixes Critical Firefox Vulnerability (CVE-2025-2857)

Mozilla has released a security update for its Firefox browser, patching a critical vulnerability (CVE-2025-2857) that could have allowed attackers to execute arbitrary code on vulnerable systems.

The vulnerability, identified as a use-after-free bug, was discovered by security researcher Francisco Alonso and reported to Mozilla. It affects Firefox versions 101.0 and earlier, and could be exploited by an attacker to gain remote code execution.

According to Mozilla's advisory, the vulnerability occurs when a maliciously crafted webpage is visited, causing Firefox to access memory locations that have already been freed. This could allow an attacker to inject and execute arbitrary code, potentially leading to the theft of sensitive information or the installation of malware on the affected system.

The security update, which was released on [date], patches the vulnerability by fixing the use-after-free bug and improving memory handling in Firefox.

Mozilla has credited Francisco Alonso with discovering the vulnerability and providing a responsible disclosure. The company has also thanked the security researcher for working with them to ensure that the vulnerability was patched quickly and securely.

Firefox users are advised to update their browser to the latest version to ensure that they are protected from this critical vulnerability. The update is available for Windows, macOS, and Linux platforms.

With this patch, Mozilla has fixed another critical vulnerability in its Firefox browser, demonstrating its commitment to keeping users safe from potential threats.