CVE-2020-3433

HighCVSS 7.8/10Known exploited (CISA KEV)Last modified Aug 12, 2026

Description

A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to perform a DLL hijacking attack. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. The vulnerability is due to insufficient validation of resources that are loaded by the application at run time. An attacker could exploit this vulnerability by sending a crafted IPC message to the AnyConnect process. A successful exploit could allow the attacker to execute arbitrary code on the affected machine with SYSTEM privileges. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

VendorProductVersions
CiscoCisco AnyConnect Secure Mobility Clientn/a

References

Timeline

Published
Aug 17, 2020
Last modified
Aug 12, 2026
Added to CISA KEV
Oct 24, 2022
NVD status
Analyzed

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CVE-2020-3433: High severity, CVSS 7.8 | Vulnix