CVE-2026-44820 | Microsoft Excel up to Office Online Server out-of-bounds (Nessus ID 321311)
A vulnerability classified as critical has been found in Microsoft Excel up to Office Online Server. Affected by this vulnerability is an unknown functionality. This manipulation causes out-of-bounds read.
This vulnerability is registered as CVE-2026-44820. Remote exploitation of the attack is possible. No exploit is available.
It is recommended to apply a patch to fix this issue.