CVE-2019-1853: Cisco AnyConnect Secure Mobility Client

High severity, CVSS 7.5. EPSS: 1.6% chance of exploitation in the next 30 days.

A vulnerability in the HostScan component of Cisco AnyConnect Secure Mobility Client for Linux could allow an unauthenticated, remote attacker to read sensitive information on an affected system. The vulnerability exists because the affected software performs improper bounds checks. An attacker could exploit this vulnerability by crafting HTTP traffic for the affected component to download and process. A successful exploit could allow the attacker to read sensitive information on the affected system.

Affected products

• Cisco AnyConnect Secure Mobility Client: version 4.6(2074) only

Published 2019-05-16. Last modified 2026-06-17.