security update

Microsoft’s advisory record and community triage indicate a local Elevation of Privilege vulnerability affecting the Capability Access Management Service (camsvc) identified as CVE‑2026‑21221, but the public technical footprint remains deliberately sparse: the MSRC Security Update Guide entry...

Microsoft has published a Security Update Guide entry for CVE-2026-20951, a Microsoft Office SharePoint Server remote code execution (RCE) vulnerability included in the January 2026 security rollup, and administrators running on‑premises SharePoint should treat it as a high‑priority...

A time‑of‑check/time‑of‑use (TOCTOU) race condition in the Windows Installer service has been cataloged as CVE‑2026‑20816 and is being treated as a high‑priority local elevation‑of‑privilege (EoP) vulnerability that can allow an authorized local account to escalate to administrative or SYSTEM...

A newly disclosed elevation‑of‑privilege issue affecting Windows Admin Center (WAC) stems from improper verification and handling of trusted artifacts and allows a local, authorized attacker to escalate privileges on a host running WAC; operators should treat affected management hosts as...