CERT-In Identifies Critical Vulnerabilities in Microsoft Office App
CERT-In flags security vulnerabilities in Microsoft Office app
Image: Deccan Herald
The Indian Computer Emergency Response Team (CERT-In) has flagged a high-severity vulnerability (CVE-2026-45659) in the Microsoft Office app that could allow remote code execution and unauthorized access. Microsoft has released an update to address this issue, urging users to upgrade their apps promptly.
- 01Microsoft Office, launched in June 1989, has over 1.2 billion active users globally.
- 02The identified vulnerability allows malware to be executed when opening compromised document files.
- 03CERT-In also reported similar security issues in Microsoft 365 Copilot, including input validation and authentication weaknesses.
- 04Users are advised to follow specific steps to update their Microsoft Office apps to mitigate security risks.
- 05Failure to address these vulnerabilities could lead to significant data breaches and service disruptions.
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The Indian Computer Emergency Response Team (CERT-In) has reported a serious security vulnerability (CVE-2026-45659) in the Microsoft Office app, which could lead to remote code execution and unauthorized access. This issue arises from the deserialization of untrusted data, allowing malware to infiltrate systems when users open infected document files. Microsoft Office, which has been a leading productivity tool since its launch in June 1989, boasts over 1.2 billion active users worldwide. Microsoft has acknowledged the vulnerability and released an update to address it. Users are strongly encouraged to update their apps to the latest version to protect their personal and financial information. Additionally, CERT-In has flagged similar vulnerabilities in Microsoft 365 Copilot, highlighting problems with input validation and authentication that could allow attackers to execute arbitrary code and disrupt cloud services. Users can update their Office apps by following a simple process outlined by Microsoft.
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The vulnerability poses a significant risk to users' personal and financial data, potentially leading to data breaches.
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