CVE WatchOct 8, 2026

CVE-2023-20178

A vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Softwar

CVSS

7.8

High

EPSS

5.4%

p93

KEV

—

Exploit Today

0-100

Published: Jun 28, 2023 · Last modified: Oct 8, 2026 · CWE-276

EPSS · 30d

5.4%EPSS · 30 days5.4%

2026-10-062026-11-03

Technical 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.

Official references

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