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.
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dll-F26WwJW; https://nvd.nist.gov/vuln/detail/CVE-2020-3433
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2020-3433 |
| Vendor / Product | Cisco — AnyConnect Secure |
| NVD Published | 2020-08-17 |
| NVD Last Modified | 2025-10-28 |
| CVSS 3.1 Score | 7.8 |
| CVSS 3.1 Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Severity | HIGH |
| CWE | CWE-427 |
| CISA KEV Added | 2022-10-24 |
| CISA KEV Deadline | 2022-11-14 |
| Known Ransomware Use | ⚠️ Yes |
CVSS 3.1 Breakdown
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2022-11-14.
Apply updates per vendor instructions.
Timeline
| Date | Event |
|---|---|
| 2022-10-24 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2022-11-14 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2020-3433 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |