Cisco AnyConnect Secure

YES - ON THE CISA KEV LIST
CVE-2020-3433

Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability

CISA catalog due date2022-11-14
overdue since 2022-11-14

EPSS exploit probability (next 30 days)10.0% · 96percentile

From CVE publication to KEV listing798 days (2020-08-17 → 2022-10-24)

Remediation window (KEV listing to due date)21 days

Days on the KEV list1479 days

Date added to KEV2022-10-24

Known ransomware campaign useKnown

VendorCisco

ProductAnyConnect Secure

Weaknesses (CWE)CWE-427

Cisco: 103 entries (5.8% of all KEV entries are from this vendor); 21 added in 2026.

BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.

Your BOD 26-04 window (SSVC tier helper)

Your tier Count from

Your remediation window ends:

Description

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.

Required action (CISA)

Apply updates per vendor instructions.

Notes

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dll-F26WwJW; https://nvd.nist.gov/vuln/detail/CVE-2020-3433

References

Other KEV entries for this vendor: Cisco

CVE-2026-20320 - BroadWorks (2026-11-10)
CVE-2026-76418 - Secure Firewall ASA Software and Cisco Secure FTD Software (2026-10-29)
CVE-2026-76519 - Secure Email Gateway (2026-10-14)
CVE-2026-76504 - Catalyst SD-WAN Manager (2026-09-30)
CVE-2026-76460 - Identity Services Engine (2026-09-16)
CVE-2026-76461 - Secure Email Gateway (2026-09-14)
CVE-2026-20079 - Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management (2026-09-09)
CVE-2026-20349 - Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) (2026-08-11)

Cisco - Vendors with KEV entries

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YES - ON THE CISA KEV LISTCVE-2020-3433