CVE-2020-3153 — Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path Vul

A vulnerability in the installer component of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated local attacker to copy user-supplied files to system level directories with system level privileges. The vulnerability is due to the incorrect handling o

01What is this vulnerability?

A vulnerability in the installer component of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated local attacker to copy user-supplied files to system level directories with system level privileges. The vulnerability is due to the incorrect handling of directory paths. An attacker could exploit this vulnerability by creating a malicious file and copying the file to a…

02Affected products

Vendor	Product	Versions
Cisco	Cisco AnyConnect Secure Mobility Client	unspecified

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-10-24. Ransomware use: Known.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2020-02-19T19:15:53.412Z
• Last modified: 2025-10-21T23:35:51.038Z
• Added to CISA KEV: 2022-10-24
• BOD 22-01 due: 2022-11-14

09References

• tools.cisco.com — https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-a…
• seclists.org — http://seclists.org/fulldisclosure/2020/Apr/43
• packetstormsecurity.com — http://packetstormsecurity.com/files/157340/Cisco-AnyConnect-Secure-Mobility-Cli…
• packetstormsecurity.com — http://packetstormsecurity.com/files/158219/Cisco-AnyConnect-Path-Traversal-Priv…
• packetstormsecurity.com — http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalatio…