High severity8.1NVD Advisory· Published Oct 13, 2026· Updated Oct 13, 2026
CVE-2026-102866
CVE-2026-102866
Description
Improper verification of cryptographic signature in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.
Affected products
1Patches
Vulnerability mechanics
References
1News mentions
1- Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilitiesCisco Talos Intelligence · Oct 13, 2026