CVE-2025-26642
HIGHCVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
2Tags
Description
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
Analysis
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Technical Context
This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally. Affected products include: Microsoft 365 Apps, Microsoft Access, Microsoft Excel, Microsoft Office, Microsoft Office Long Term Servicing Channel.
Affected Products
Microsoft 365 Apps, Microsoft Access, Microsoft Excel, Microsoft Office, Microsoft Office Long Term Servicing Channel.
Remediation
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.
Priority Score
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External POC / Exploit Code
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