The Indian Computer Emergency Response Team (CERT-In) has issued a critical warning: older versions of Google Chrome and Chromium-based Microsoft Edge browsers contain serious security vulnerabilities. These flaws could allow malicious actors to gain unauthorized access to user systems, execute remote code, and even launch denial-of-service (DoS) attacks. CERT-In flagged these issues on October 15, urging all users to update their browsers immediately to the latest versions for protection.
Urgent Warning: Browser Flaws Allow Remote Code Execution
In a pair of recent vulnerability notes (CIVN-2025-0258 and CIVN-2025-0256), CERT-In detailed the high-risk security compromises affecting both Google Chrome and Microsoft Edge. Specifically, Google Chrome for Desktop versions older than 141.0.7390.107/.108 across Windows, Mac, and Linux, along with Chromium-based Microsoft Edge Stable Channel 141.0.3537.71 and older, are at significant risk.
For Chrome users, this security vulnerability means that attackers could remotely execute arbitrary code on your desktop. This not only jeopardizes your system’s security but could also cause widespread service disruptions. CERT-In explained that the core issue, labeled “Use after free in Safe Browsing,” can be exploited if a hacker sends a specially crafted request to your device.
Similarly, the vulnerable versions of Microsoft Edge, which also utilize the Chromium engine, are susceptible to unauthorized access and remote arbitrary code execution. These versions also face the risk of denial-of-service (DoS) attacks, potentially rendering your system unusable.
According to CERT-In, these critical flaws stem from “Heap buffer overflow in Sync and Use after free in storage.” An attacker could leverage these weaknesses by tricking a user into visiting a malicious webpage designed to exploit these specific vulnerabilities.
As of now, neither Google nor Microsoft has released official patches for these particular security flaws, leaving users’ privacy and system integrity exposed. Therefore, it is strongly recommended that everyone update their respective browsers to the newest available versions as soon as possible to mitigate these serious risks.