CyberICT

CVE-2026-70068

Microsoft · Published October 13, 2026

CVSS v3.1

HIGH
Patch availableGet patch

Description

Windows Client-Side Caching (CSC) Service Elevation of Privilege Vulnerability. Heap-based buffer overflow in Windows Client-Side Caching (CSC) Service allows an unauthorized attacker to elevate privileges over a network.

Affected Products

  • Windows 11 Version 24H2 for ARM64-based Systems
  • Windows 11 Version 24H2 for x64-based Systems
  • Windows 11 Version 25H2 for ARM64-based Systems
  • Windows 11 Version 25H2 for x64-based Systems

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C