Microsoft Office/Word information disclosure

Summaryinfo

A vulnerability described as problematic has been identified in Microsoft Office and Word. Impacted is an unknown function. The manipulation results in information disclosure. This vulnerability is identified as CVE-2026-83949. The attack is only possible with local access. There is not any exploit available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability was found in Microsoft Office and Word (unknown version). It has been classified as problematic. Affected is an unknown code block. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

The advisory is available at msrc.microsoft.com. This vulnerability is traded as CVE-2026-83949 since 09/01/2026. The exploitability is told to be easy. Local access is required to approach this attack. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Applying a patch is able to eliminate this problem.

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Productinfo

Type

• Office Suite Software

Vendor

• Microsoft

Name

• Office
• Word

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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