Microsoft Office out-of-bounds

Summaryinfo

A vulnerability categorized as problematic has been discovered in Microsoft Office. Affected by this vulnerability is an unknown functionality. Executing a manipulation can lead to out-of-bounds. This vulnerability is tracked as CVE-2026-55050. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability was found in Microsoft Office (affected version unknown). It has been declared as problematic. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality. CVE summarizes:

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

The advisory is available at msrc.microsoft.com. This vulnerability was named CVE-2026-55050 since 06/16/2026. The exploitation appears 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. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/15/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Office Suite Software

Vendor

• Microsoft

Name

• Office

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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