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CVE-2019-12583

9.1 · CRITICAL

Missing Access Control in the "Free Time" component of several Zyxel UAG, USG, and ZyWall devices allows a remote attacker to generate guest accounts by directly accessing the account generator.

Published Jun 27, 2019CWE-425EPSS 43.93%

Overview

CVE-2019-12583 is a critical-severity vulnerability. It was published on June 27, 2019 and has a CVSS 3.0 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.0 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Missing Access Control in the "Free Time" component of several Zyxel UAG, USG, and ZyWall devices allows a remote attacker to generate guest accounts by directly accessing the account generator. This can lead to unauthorised network access or Denial of Service.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refn-thumann.de/blog/zyxel-gateways-missing-access-control-in-account-generator-xss/Refwww.zyxel.com/support/vulnerabilities-related-to-the-Free-Time-feature.shtmlRefn-thumann.de/blog/zyxel-gateways-missing-access-control-in-account-generator-xss/Refwww.zyxel.com/support/vulnerabilities-related-to-the-Free-Time-feature.shtml

How CyberStrike helps

Frequently asked questions

What is CVE-2019-12583?

CVE-2019-12583 is a critical-severity vulnerability. It was published on June 27, 2019 and has a CVSS 3.0 base score of 9.1 (CRITICAL).

How severe is CVE-2019-12583?

This vulnerability has a CVSS 3.0 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-12583?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-12583?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-12583 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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