TI-2021-17319 Aliases CVE-2021-40124 GHSA-x848-mf45-8cv4

Improper privilege management in Cisco AnyConnect Secure Mobility Client

LOW 36CWE-266Published 2021-11-04 · Updated 2024-11-07

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Privilege escalation
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-266.

Summary

A vulnerability in the Network Access Manager (NAM) module of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to escalate privileges on an affected device. This vulnerability is due to incorrect privilege assignment to scripts executed before user logon. An attacker could exploit this vulnerability by configuring a script to be executed before logon. A successful exploit could allow the attacker to execute arbitrary code with SYSTEM privileges.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00242 15th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco AnyConnect Secure Mobility Client	all versions	—	No fix listed	CNA

Cisco AnyConnect Secure Mobility Client VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:anyconnect_secure_mobility_client::::::windows::*	before 4.10.03104	Vulnerable	Cisco

cpe:2.3:a:cisco:anyconnect_secure_mobility_client:*:*:*:*:*:windows:*:* Versions before 4.10.03104 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-40124
2026-10-03 Alias added: GHSA-x848-mf45-8cv4

References

Advisory 1

20211103 Cisco AnyConnect Secure Mobility Client for Windows with Network Access Manager Module Privilege Escalation Vulnerability

TI-2020-02982 Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability KEVCVSS 3.1HIGH 7.8
TI-2020-02715 Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path Vulnerability KEVCVSS 3.1MEDIUM 6.5
TI-2011-01789 The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect… CVSS 2.0HIGH 7.6
TI-2011-01790 The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect… CVSS 2.0HIGH 9.3
TI-2012-02179 The VPN downloader implementation in the WebLaunch feature in Cisco AnyConnect Secure… CVSS 2.0HIGH 9.3
TI-2023-06884 Incorrect default permissions in Cisco Secure Client CVSS 3.1HIGH 7.8

See all 68 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences