Medium severity5.5NVD Advisory· Published Sep 8, 2026· Updated Sep 17, 2026
CVE-2026-81400
CVE-2026-81400
Description
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
Affected products
1Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81400nvdPatchVendor Advisory
News mentions
3- Patch Tuesday - September 2026Rapid7 Blog · Sep 8, 2026
- Microsoft Office Excel: 25 Vulnerabilities Disclosed in Single September 2026 BatchVypr Intelligence · Sep 8, 2026
- Massive Microsoft Patch Tuesday September 2026 – 973 Vulnerabilities Fixed, Including 2 Zero-DaysCyber Security News · Sep 8, 2026