CVE-2021-1568 MEDIUM

CVE-2021-1568: Cisco AnyConnect Secure Mobility Client for Windows Denial of Service Vulnerability

Vendor Cisco
Product Cisco AnyConnect Secure Mobility Client
Weakness CWE-789
Published June 16, 2021
Last update November 7, 2024

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

A vulnerability in Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected system. This vulnerability is due to uncontrolled memory allocation. An attacker could exploit this vulnerability by copying a crafted file to a specific folder on the system. A successful exploit could allow the attacker to crash the VPN Agent service when the affected application is launched, causing it to be unavailable to all users of the system. To exploit this vulnerability, the attacker must have valid credentials on a multiuser Windows system.

Key dates

02Disclosure timeline

June 16, 2021 CVE published
November 7, 2024 Record updated