VULNERABILITY INTELLIGENCE

CVE-2023-20178

CVSS score7.8 HIGH
EPSS probability5.37%
CISA KEVNot currently listed
Published2023-06-28
Last modified2026-10-08
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

A vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges to those of SYSTEM. The client update process is executed after a successful VPN connection is established. This vulnerability exists because improper permissions are assigned to a temporary directory that is created during the update process. An attacker could exploit this vulnerability by abusing a specific function of the Windows installer process. A successful exploit could allow the attacker to execute code with SYSTEM privileges.

Weakness classification

  • CWE-276: Incorrect Default Permissions

Primary references