Zyxel WAX650S Firmware vulnerabilities

13 CVEs affecting Zyxel WAX650S Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-8508, published 2026-08-04.

Highest priority

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

CVE-2024-7261, published 2024-09-03. Critical severity, CVSS 9.8. EPSS: 11.4% chance of exploitation in the next 30 days. The improper neutralization of special elements in the parameter "host" in the CGI program of Zyxel NWA1123ACv3 firmware version 6.70(ABVT.4) and earlier, WAC500 firmware version 6.70(ABVS.4) and…
CVE-2022-26531, published 2022-05-24. High severity, CVSS 7.8. EPSS: 6.2% chance of exploitation in the next 30 days. Multiple improper input validation flaws were identified in some CLI commands of Zyxel USG/ZyWALL series firmware versions 4.09 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP…
CVE-2022-26532, published 2022-05-24. High severity, CVSS 7.8. EPSS: 4.8% chance of exploitation in the next 30 days. A argument injection vulnerability in the 'packet-trace' CLI command of Zyxel USG/ZyWALL series firmware versions 4.09 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series…
CVE-2026-6837, published 2026-08-04. High severity, CVSS 7.2. EPSS: 1.5% chance of exploitation in the next 30 days. A post-authentication command injection vulnerability in the "export-cgi" CGI program in Zyxel WAX650S firmware versions through 7.10(ABRM.4)C0 could allow an authenticated attacker with…
CVE-2023-6398, published 2024-02-20. High severity, CVSS 7.2. EPSS: 1.3% chance of exploitation in the next 30 days. A post-authentication command injection vulnerability in the file upload binary in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50…
CVE-2023-22918, published 2023-04-24. Medium severity, CVSS 6.5. EPSS: 0.8% chance of exploitation in the next 30 days. A post-authentication information exposure vulnerability in the CGI program of Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX…
CVE-2025-6265, published 2025-07-15. High severity, CVSS 7.2. EPSS: 0.6% chance of exploitation in the next 30 days. A path traversal vulnerability in the file_upload-cgi CGI program of Zyxel NWA50AX PRO firmware version 7.10(ACGE.2) and earlier could allow an authenticated attacker with administrator privileges to…
CVE-2024-12398, published 2025-01-14. High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days. An improper privilege management vulnerability in the web management interface of the Zyxel WBE530 firmware versions through 7.00(ACLE.3) and WBE660S firmware versions through 6.70(ACGG.2) could…
CVE-2024-1575, published 2024-07-23. Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days. The improper privilege management vulnerability in the Zyxel WBE660S firmware version 6.70(ACGG.3) and earlier versions could allow an authenticated user to escalate privileges and download the…
CVE-2026-8508, published 2026-08-04. Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days. An improper authentication vulnerability in the "social_login.cgi" CGI program in Zyxel WAX650S firmware versions through 7.10(ABRM.4)C0 could allow an attacker on the WLAN to bypass captive portal…

Latest

CVE-2023-5797, published 2023-11-28. Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days. 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 versions 4.50 through 5.37, USG FLEX…
CVE-2023-37925, published 2023-11-28. Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days. 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 versions 4.50 through 5.37, USG FLEX…