Zyxel Zld
21 CVEs affecting Zyxel Zld. Latest disclosed: 2025-10-21. Critical: 1, High: 10.
| CVE | Severity | Score | Published | Summary |
|---|---|---|---|---|
CVE-2020-25014 | Critical | 9.8 | 2020-11-27 | A stack-based buffer overflow in fbwifi_continue.cgi on Zyxel UTM and VPN series of gateways running firmware version V4.30 through to V4.55 allows remote unau… |
CVE-2025-9133 | High | 8.1 | 2025-10-21 | A missing authorization vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40, USG FLEX series firmware versions from V4.50 through V5.4… |
CVE-2024-42057 | High | 8.1 | 2024-09-03 | A command injection vulnerability in the IPSec VPN feature of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions fr… |
CVE-2024-11667 | High | 7.5 | 2024-11-27 | A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware versions V5.00 through V5.38, USG FLEX series firmware version… |
CVE-2024-42058 | High | 7.5 | 2024-09-03 | A null pointer dereference vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V… |
CVE-2023-4398 | High | 7.5 | 2023-11-28 | An integer overflow vulnerability in the source code of the QuickSec IPSec toolkit used in the VPN feature of the Zyxel ATP series firmware versions 4.32 throu… |
CVE-2025-8078 | High | 7.2 | 2025-10-21 | A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40, USG FLEX series firmware versions from V4… |
CVE-2024-7203 | High | 7.2 | 2024-09-03 | A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.60 through V5.38 and USG FLEX series firmware versions from… |
CVE-2024-42060 | High | 7.2 | 2024-09-03 | A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4… |
CVE-2024-42059 | High | 7.2 | 2024-09-03 | A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V5.00 through V5.38, USG FLEX series firmware versions from V5… |
CVE-2020-29299 | High | 7.2 | 2020-12-27 | Certain Zyxel products allow command injection by an admin via an input string to chg_exp_pwd during a password-change action. This affects VPN On-premise befo… |
CVE-2024-42061 | Medium | 6.1 | 2024-09-03 | A reflected cross-site scripting (XSS) vulnerability in the CGI program "dynamic_script.cgi" of Zyxel ATP series firmware versions from V4.32 through V5.38, US… |
CVE-2023-5960 | Medium | 5.5 | 2023-11-28 | An improper privilege management vulnerability in the hotspot feature of the Zyxel USG FLEX series firmware versions 4.50 through 5.37 and VPN series firmware… |
CVE-2023-5797 | Medium | 5.5 | 2023-11-28 | An improper privilege management vulnerability in the debug CLI command of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware v… |
CVE-2023-5650 | Medium | 5.5 | 2023-11-28 | An improper privilege management vulnerability in the ZySH of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50… |
CVE-2023-37926 | Medium | 5.5 | 2023-11-28 | A buffer overflow vulnerability in the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W… |
CVE-2023-37925 | Medium | 5.5 | 2023-11-28 | An improper privilege management vulnerability in the debug CLI command of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware v… |
CVE-2023-35136 | Medium | 5.5 | 2023-11-28 | An improper input validation vulnerability in the “Quagga” package of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versio… |
CVE-2023-35139 | Medium | 5.2 | 2023-11-28 | A cross-site scripting (XSS) vulnerability in the CGI program of the Zyxel ATP series firmware versions 5.10 through 5.37, USG FLEX series firmware versions 5… |
CVE-2024-6343 | Medium | 4.9 | 2024-09-03 | A buffer overflow vulnerability in the CGI program of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50… |