CVE-2020-3433

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Summary

CVECVE-2020-3433
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-08-17 18:15:00 UTC
Updated2023-11-07 03:22:00 UTC
DescriptionA 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.

Risk And Classification

EPSS: 0.100490000 probability, percentile 0.951280000 (date 2026-07-22)

CISA KEV: Listed on 2022-10-24; due 2022-11-14; ransomware use Known

Problem Types: CWE-427

CISA Known Exploited Vulnerability

VendorCisco
ProductAnyConnect Secure
NameCisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability
Required ActionApply updates per vendor instructions.
Noteshttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dll-F26WwJW; https://nvd.nist.gov/vuln/detail/CVE-2020-3433

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cisco Anyconnect Secure Mobility Client All All All All
Application Cisco Anyconnect Secure Mobility Client All All All All

References

ReferenceSourceLinkTags
Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability CISCO tools.cisco.com Vendor Advisory
Cisco AnyConnect Privilege Escalation ≈ Packet Storm MISC packetstormsecurity.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

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