Zyxel USG2200-VPN Firmware vulnerabilities

4 CVEs affecting Zyxel USG2200-VPN Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2021-35029, published 2021-07-02.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2019-12583, published 2019-06-27. Critical severity, CVSS 9.1. EPSS: 43.9% chance of exploitation in the next 30 days. 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…
CVE-2019-9955, published 2019-04-22. Medium severity, CVSS 6.1. EPSS: 21.2% chance of exploitation in the next 30 days. On Zyxel ATP200, ATP500, ATP800, USG20-VPN, USG20W-VPN, USG40, USG40W, USG60, USG60W, USG110, USG210, USG310, USG1100, USG1900, USG2200-VPN, ZyWALL 110, ZyWALL 310, ZyWALL 1100 devices, the security…
CVE-2019-12581, published 2019-06-27. Medium severity, CVSS 6.1. EPSS: 6.4% chance of exploitation in the next 30 days. A reflective Cross-site scripting (XSS) vulnerability in the free_time_failed.cgi CGI program in selected Zyxel ZyWall, USG, and UAG devices allows remote attackers to inject arbitrary web script or…
CVE-2021-35029, published 2021-07-02. Critical severity, CVSS 9.8. EPSS: 2.3% chance of exploitation in the next 30 days. An authentication bypasss vulnerability in the web-based management interface of Zyxel USG/Zywall series firmware versions 4.35 through 4.64 and USG Flex, ATP, and VPN series firmware versions 4.35…