CVE-2020-3153

Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path Vulnerability

MEDIUM
6.5
CVSS Score
Published: February 19, 2020 at 07:15 PM UTC
Updated: August 12, 2026 at 05:28 AM UTC
1 product affected across 1 vendorAnyconnect Secure Mobility Client

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Severity
MEDIUM6.5
Exploitation
CISA KEV
Exploit prediction
EPSS 28%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score28.3%

EPSS (Exploit Prediction Scoring System) estimates a 28.3% chance this CVE is exploited in the wild within the next 30 days — higher than 98% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Cisco AnyConnect Secure Mobility Client for Windows allows for incorrect handling of directory paths. An attacker with valid credentials on Windows would be able to copy malicious files to arbitrary locations with system level privileges. This could include DLL pre-loading, DLL hijacking, and other related attacks.

Required Action
Apply updates per vendor instructions.
Ransomware Use
Known
Added to KEV
Oct 24, 2022
Remediation Due
Nov 14, 2022
1444 days overdue

Description

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 system directory. An exploit could allow the attacker to copy malicious files to arbitrary locations with system level privileges. This could include DLL pre-loading, DLL hijacking, and other related attacks. To exploit this vulnerability, the attacker needs valid credentials on the Windows system.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.8.02042
Affected range stops below 4.8.02042, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCActiveNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-427

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