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CVE-2020-3433: Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability

criticalknown exploitedpublic exploitCVE-2020-3433
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Cisco AnyConnect Secure Mobility Client for Windows interprocess communication (IPC) channel allows for insufficient validation of resources that are loaded by the application at run time. An attacker with valid credentials on Windows could execute code on the affected machine with SYSTEM privileges.

CSIRTS triage

vendor: Ciscoproduct: AnyConnect Secure Mobility ClientPrivilege escalationOther
What
An attacker with valid credentials can execute code on the affected machine with SYSTEM privileges due to insufficient validation of resources.
Who is affected
Users of Cisco AnyConnect Secure Mobility Client for Windows with valid credentials.
Urgency
Remediation is urgent due to the critical nature of the vulnerability and its exploitation status.
Action
Update to the latest version of Cisco AnyConnect Secure Mobility Client.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-10-24
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-3433

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2020-3433coverage & exploitation statusNVD · CVE.org

Recent advisories for Cisco AnyConnect Secure

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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