CVE-2026-21261 — Microsoft Excel Information Disclosure Vulnerability

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

Published: 2026-02-10 · CVSS: 5.5 · CVSS 3.1

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

Original CVE JSON · STIX 2.1

Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7