The Indian government’s cybersecurity agency, CERT-In, has issued a security warning for Mozilla Firefox, Thunderbird, and Zoom. Several security vulnerabilities have been discovered in these, which hackers could exploit to steal users’ personal data.
If you use Zoom for video conferencing or Firefox for web browsing, be cautious—serious vulnerabilities have been discovered in both platforms. India’s cyber security agency, CERT-In, has reported these issues and advised users to remain vigilant. The Indian Computer Emergency Response Team (CERT-In) has issued a warning for users of Mozilla Firefox and Zoom, highlighting critical software flaws that could put sensitive user data at risk. The agency has released two separate advisories concerning security vulnerabilities found in Zoom, Firefox, and Thunderbird. These warnings were issued on October 28, 2026.
What is this warning about?
According to a report by Times Now, the agency has identified security vulnerabilities in two types of applications: Mozilla’s Firefox browser and Thunderbird email app, as well as Zoom’s video conferencing and workplace software. In simpler terms, attackers could exploit these weaknesses. By leveraging these flaws, they could gain access to sensitive data, obtain elevated privileges on the target device, or even hack the entire system by executing malicious code.
However, this does not mean that all users of Mozilla and Zoom need to be concerned. The warning implies that users running the affected versions could face security risks if someone were to exploit these vulnerabilities.