Microsoft Office Alert- If you use Microsoft Office, then make these settings immediately, the system can be hacked.

Friends, in today’s modern era, most of the people use Microsoft Office regularly for work, study or business purposes, if you are also one of them, then this news is for you. India’s cyber security monitoring organization, Indian Computer Emergency Response Team (CERT-In) has issued a ‘High Risk’ security warning about a serious flaw found in Microsoft Office. Cyber ​​criminals can take advantage of this flaw and enter the affected system without permission, let’s know the complete details.

Since Microsoft Office is one of the most widely used productivity suites in the world, this flaw could affect millions of users in both personal and corporate environments. Users are strongly advised to install the latest security updates from Microsoft without any delay.

CERT-In issues ‘high risk’ security alert

The Indian Computer Emergency Response Team (CERT-In), operating under the Ministry of Electronics and Information Technology (MeitY), has identified a serious security flaw in Microsoft Office. This flaw has been given the identifier CVE-2026-45659.

According to CERT-In, this flaw exists in certain parts of Microsoft Office and could allow attackers to run arbitrary code on targeted systems. This warning applies not only to businesses and government organizations, but also to individual users who rely on Microsoft Office on their personal computers.

Given its potential impact, CERT-In has classified this issue as a “High Risk” threat.

Why is this flaw so dangerous?

CERT-In says the flaw is related to ‘de-serialization’ of ‘untrusted data’; This is a security vulnerability that can be exploited when a vulnerable system processes specially crafted malicious data.

If the attackers are successful, they can:

Executing malicious code remotely.

Entering the system without permission.

Stealing sensitive or confidential information.

Changing or deleting important data.

Installing malware or ransomware.

To completely take over the affected device.

How can users protect themselves?

To mitigate the risk associated with CVE-2026-45659, CERT-In urges all users and organizations to immediately install the latest security patches released by Microsoft.

Suggested Safety Measures

Update Microsoft Office to the latest version available. Keep automatic updates turned on whenever possible.

Regularly install security patches released by Microsoft.

Avoid opening files from unknown or untrusted sources.

Make sure antivirus and endpoint protection software is up-to-date.

Make employees and users aware of potential phishing and malware threats.