Vulnerability in Zyxel Uag2100
CVE-2019-12583
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.439 (98.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.439 · newest: 0.439 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.zyxel.com/support/vulnerabilities-related-to-the-Free-Time-feature.shtml (Patch, Vendor Advisory)
- n-thumann.de/blog/zyxel-gateways-missing-access-control-in-account-generator-xs… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-12583?
- CVE-2019-12583 is a critical-severity vulnerability in Zyxel Uag2100, classified under Direct Request (Forced Browsing). CVSS score: 9.1/10. Published 2019-06-27.
- How severe is CVE-2019-12583?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2019-12583 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.