CVE-2020-3433 — Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability
Overview
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.
Vulnerability details
- CVE ID
- CVE-2020-3433
- Vulnerability
- Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability
- Vendor
- Cisco
- Affected products
- Cisco: AnyConnect Secure
- Severity
- HIGH
- Exploitation status
- Actively exploited in the wild (CISA KEV)
- Published
- 2022-10-24
Remediation guidance
CVE-2020-3433 is in CISA's Known Exploited Vulnerabilities (KEV) catalog — U.S. federal civilian agencies are required to remediate it under Binding Operational Directive 22-01. Treat it as a priority for every environment.
Apply the vendor's official security update for Cisco the affected product as soon as possible. Where a patch is unavailable, apply vendor mitigations or isolate/segment exposed systems.
Hunt for indicators of compromise tied to this vulnerability and confirm logging/EDR coverage on affected assets.
Authoritative references
Remediate CVE-2020-3433 — and stay ahead of the next one
CVE-2020-3433 is listed in the CISA KEV catalog as actively exploited — treat remediation as urgent. Scan your domain free to see whether CVE-2020-3433 and other Cisco issues affect you and get a prioritized remediation report (full report from ₹999) — or stream the full feed of 1,600+ actively-exploited CVEs straight into your SOC.
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