CVE-2020-3153: Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path Vulnerability

Medium severity, CVSS 6.5. Actively exploited: in CISA KEV since 2022-10-24. EPSS: 28.3% chance of exploitation in the next 30 days.

A vulnerability in the installer component of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated local attacker to copy user-supplied files to system level directories with system level privileges. The vulnerability is due to the incorrect handling of directory paths. An attacker could exploit this vulnerability by creating a malicious file and copying the file to a system directory. An exploit could allow the attacker to copy malicious files to arbitrary locations with system level privileges. This could include DLL pre-loading, DLL hijacking, and other related attacks. To exploit this vulnerability, the attacker needs valid credentials on the Windows system.

Affected products

• Cisco AnyConnect Secure Mobility Client: before 4.8.02042 (fixed in 4.8.02042)

Published 2020-02-19. Last modified 2026-08-12.