CVE-2026-21261
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
MEDIUM · CVSS 5.5
EPSS 0.00031
Monitor
- No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules13
YARA rules0