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Vulnerabilities CVE-2020-3433

CVE-2020-3433

High
Open
KEV
TLP:CLEAR

Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability

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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.

Details

CVSS Score
7.8
EPSS Score
10.05%

95.2th percentile

CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Confidence
100%
Published
Aug 17, 2020
Last Modified
Aug 12, 2026
CISA KEV
Date Added
Oct 24, 2022
Patch Due
Nov 14, 2022
Used in ransomware campaigns
Required Action
Apply updates per vendor instructions.
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