Government issues serious warning for broadband users using these Wi-Fi routers: Details and fix you need to know

The Indian Computer Emergency Response Team (CERT-In) has issued a high-severity security alert for users of a popular home Wi-Fi router model from Digisol. The advisory, published on July 16, 2025, outlines multiple vulnerabilities that could be exploited by attackers to hijack sessions, steal credentials, or gain unauthorised access to a user’s home or office network. These flaws could leave sensitive data exposed and compromise the overall security of connected devices.

What’s the warning

According to CERT-In, the Digisol DG-GR6821AC Wi-Fi router — specifically those running firmware version V3.2.XX — contains five critical vulnerabilities. These issues include hard-coded credentials, unencrypted storage and transmission of sensitive data, and insecure session cookie handling. The router in question is a dual-mode Optical Network Unit (ONU), commonly used in households and small offices with broadband connections.

The warning states that these vulnerabilities can lead to session hijacking, Man-in-the-Middle (MITM) attacks, and unauthorised network access. Attackers with physical or remote access may be able to extract credentials, monitor traffic, or even take full control of the device.