CVE-2020-3434

MEDIUM

Cisco AnyConnect Privilege Escalations (CVE-2020-3153 and CVE-2020-3433)

Title source: metasploit
STIX 2.1

Description

A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted IPC message to the AnyConnect process on an affected device. A successful exploit could allow the attacker to stop the AnyConnect process, causing a DoS condition on the device. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system.

References (1)

Core 1
Core References

Scores

CVSS v3 5.5
EPSS 0.0006
EPSS Percentile 19.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-20
Status published
Products (1)
cisco/anyconnect_secure_mobility_client < 4.9.00086
Published Aug 17, 2020
Tracked Since Feb 18, 2026