TI-2018-00293 Aliases CVE-2018-0334 GHSA-4p6c-fxcr-rhm3

Improper certificate validation in Cisco AnyConnect Secure Mobility Client unknown

LOW 24CWE-295Published 2018-06-07 · Updated 2024-11-29

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-295.

Summary

A vulnerability in the certificate management subsystem of Cisco AnyConnect Network Access Manager and of Cisco AnyConnect Secure Mobility Client for iOS, Mac OS X, Android, Windows, and Linux could allow an unauthenticated, remote attacker to bypass the TLS certificate check when downloading certain configuration files. The vulnerability is due to improper use of Simple Certificate Enrollment Protocol and improper server certificate validation. An attacker could exploit this vulnerability by preparing malicious profile and localization files for Cisco AnyConnect to use. A successful exploit could allow the attacker to remotely change the configuration profile, a certificate, or the localization data used by AnyConnect Secure Mobility Client. Cisco Bug IDs: CSCvh23141.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00963 61st 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: Partial

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 AnyConnect Secure Mobility Client unknown	Cisco AnyConnect Secure Mobility Client unknown	—	No fix listed	CNA

Cisco AnyConnect Secure Mobility Client unknown Vendor— Affected Cisco AnyConnect Secure Mobility Client unknown Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.6\(100\):::::::*	4.6(100)	Vulnerable	Cisco

cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.6\(100\):*:*:*:*:*:*:* Versions 4.6(100) Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-0334
2026-10-03 Alias added: GHSA-4p6c-fxcr-rhm3

References

Advisory 1

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-AnyConnect-cert-bypass

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