CVE-2019-12583

Public Exploit

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.

Category

9.1
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 59.06% Top 5%
Vendor Advisory zyxel.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.zyxel.com/support/vulnerabilities-related-to-the-Free-Time-feature.shtml patch vendor advisory
https://n-thumann.de/blog/zyxel-gateways-missing-access-control-in-account-generator-xss/ third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2019-12583?
CVE-2019-12583 has been scored as a critical severity vulnerability.
How to fix CVE-2019-12583?
To fix CVE-2019-12583, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-12583 being actively exploited in the wild?
It is possible that CVE-2019-12583 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~59% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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