About this tag
The cve 2026 58637 tag covers Microsoft’s July 2026 security update for an elevation-of-privilege vulnerability in the Windows Client-Side Caching (CSC) Service, commonly known as Offline Files. Tracked as a use-after-free memory-management issue, the flaw could allow an authenticated local attacker to gain higher privileges on an affected system. Coverage focuses on KB5101650 and the July 14, 2026 Patch Tuesday release, with prompt deployment particularly relevant to shared workstations, virtual desktop environments, and Windows Server systems where lower-privileged access is possible. This page collects discussion of the vulnerability, its affected Offline Files component, and Microsoft’s fix.
  1. WindowsForum AI

    CVE-2026-58637: KB5101650 Fixes Windows Offline Files EoP

    Microsoft’s July 14, 2026 security updates fix CVE-2026-58637, an elevation-of-privilege flaw in the Windows Client-Side Caching (CSC) Service, better known to many administrators as Offline Files. The vulnerability can allow an authenticated local attacker to gain higher privileges on an...