CVE-2020-3153 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2020-3153MEDIUM

Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path Vulnerability

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  C  N  H  N    6.5   .2745   97.9   YES

AFFECTED
  Product                                  Versions       Fixed
  Cisco AnyConnect Secure Mobility Client  unspecified –  —

TIMELINE
  Dec 12  Reserved by cisco
  Oct 24  Added to CISA KEV, remediation due 2022-11-14
  Oct 24  Published (CNA: cisco)
  Aug 12  EXPLOIT PUBLISHED — CVE-2020-3153 (Cisco AnyConnect Secure Mobility Client). Public exploit reference added.

CWE-427 · CNA: cisco · CVSS v3.1 · 6 references · NVD status: Analyzed · KEV due November 14, 2022

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.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
December 12, 2019	Reserved	Reserved by cisco
October 24, 2022	KEV ADDED	Added to CISA KEV, remediation due 2022-11-14
October 24, 2022	Published	Published (CNA: cisco)
August 12, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2020-3153 (Cisco AnyConnect Secure Mobility Client). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Cisco	Cisco AnyConnect Secure Mobility Client	—	unspecified	—

Weaknesses

CWE-427

References (6)

http://packetstormsecurity.com/files/157340/Cisco-AnyConnect-Secure-Mobility-Client-4.8.01090-Privilege-Escalation.html [Exploit, Third Party Advisory, VDB Entry]
http://packetstormsecurity.com/files/158219/Cisco-AnyConnect-Path-Traversal-Privilege-Escalation.html [Exploit, Third Party Advisory, VDB Entry]
http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalation.html [Exploit, Third Party Advisory, VDB Entry]
http://seclists.org/fulldisclosure/2020/Apr/43 [Exploit, Mailing List, Third Party Advisory]
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ac-win-path-traverse-qO4HWBsj [Vendor Advisory]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3153 [US Government Resource]

Authoritative record: CVE-2020-3153 at cve.org

Vendors: cisco

Weaknesses: CWE-427

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2020-3153 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.