CVE-2020-3433 KEV
Patch first
On CISA KEV — known exploited in the wild, due 2022-11-14.
Description
A 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.
Scoring
| CVSS | 7.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 10.05% — more likely to be exploited than 95% of all CVEs |
| Weakness | CWE-427 |
| On CISA KEV | yes — remediate by 2022-11-14 |
| Public exploit | none known |
| Published | 2020-08-17 |
| Last modified | 2026-08-12 |
CISA KEV
| Name | Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability |
|---|---|
| Added | 2022-10-24 |
| Due | 2022-11-14 |
| Vendor / product | Cisco / AnyConnect Secure |
| Ransomware use | known |
Affected (1)
| Vendor | Product |
|---|---|
| cisco | anyconnect secure mobility client |
References
- http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalation.html
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dll-F26WwJW
- http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalation.html
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dll-F26WwJW
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3433
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