Microsoft Office out-of-bounds

Summaryinfo

A vulnerability categorized as problematic has been discovered in Microsoft Office. Affected is an unknown function. The manipulation results in out-of-bounds. This vulnerability is reported as CVE-2026-63524. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability was found in Microsoft Office (affected version unknown). It has been classified as problematic. Affected is an unknown functionality. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. CVE summarizes:

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

The advisory is available at msrc.microsoft.com. This vulnerability is traded as CVE-2026-63524 since 07/17/2026. 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.

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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