CVE-2018-0334

Name: CVE-2018-0334
Creator: NVD / NIST
Published: 2018-06-07T21:29:00.493+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.98%

Last modified Jun 17, 2026

CVE-2018-0334 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.98% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.98%

57.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Anyconnect Secure Mobility Client	4.6\(100\)

References

http://www.securityfocus.com/bid/104430Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041075Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-AnyConnect-cert-bypassVendor Advisory
http://www.securityfocus.com/bid/104430Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041075Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-AnyConnect-cert-bypassVendor Advisory

Timeline

Published: Jun 7, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0334?

How severe is CVE-2018-0334?

Severity scoring for CVE-2018-0334 is pending analysis. The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0334?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-0334?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST