TI-2026-17166 CVE-2026-21259 · GHSA-pw6x-8hxj-hv8c
Microsoft Excel Elevation of Privilege Vulnerability
Priority LOW 37
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally.
KB5002835
Security Update
Fixed in
- Office Online Server 16.0.10417.20097
Fixes 3 records
TI-2026-17168 CVE-2026-21261 · GHSA-4j53-hjh6-2xw6
Microsoft Excel Information Disclosure Vulnerability
Priority LOW 26
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
TI-2026-17165 CVE-2026-21258 · GHSA-v8pc-rxff-x74j
Microsoft Excel Information Disclosure Vulnerability
Priority LOW 26
Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.