# Zyxel vulnerabilities Source: https://junglewise.ai/threats/vendors/zyxel Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 10 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/vendors/zyxel.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 33 vulnerabilities in Zyxel: 0 in the last 7 days and 3 in the last 90 days, 13 of them critical and 12 exploited in the wild. The most recent, CVE-2026-76955, was published on 3 November 2026. 3 vulnerabilities in the last four weeks, up from none in the four before. 9 technologies have a page of their own. ## Counts - Last 7 days: 0 - Last 30 days: 3 - Last 90 days: 3 - All time: 33 (13 critical, 12 exploited in the wild) ## About Zyxel Zyxel Networks is a global provider of networking solutions for home and business users. ## Latest Zyxel vulnerabilities - [CVE-2026-76955: Zyxel NWA110AX buffer overflow in zdp_wtp](https://junglewise.ai/threats/cve-2026-76955-a-buffer-overflow-vulnerability-in-the-zdp-wtp-binary-in-zyxel) (high, CVSS 8.8, published 3 Nov 2026) - [CVE-2026-107441: Zyxel GS1900 out-of-bounds write in CGI program](https://junglewise.ai/threats/cve-2026-107441-an-out-of-bounds-write-vulnerability-in-the-cgi-program-of-zyxel) (high, CVSS 8.8, published 3 Nov 2026) - [CVE-2026-12489: Zyxel EX3501-T0 privilege escalation in Data Access Layer](https://junglewise.ai/threats/cve-2026-12489-an-incorrect-authorization-vulnerability-in-the-data-access-layer) (medium, CVSS 6.5, published 20 Oct 2026) - [CVE-2026-13206: Zyxel WAH7601 OS command injection](https://junglewise.ai/threats/cve-2026-13206-zyxel-wah7601-os-command-injection) (critical, CVSS 9.8, published 10 Aug 2026) - [CVE-2026-14818: Zyxel ZLD firewall path traversal in configuration execution](https://junglewise.ai/threats/cve-2026-14818-zyxel-zld-firewall-path-traversal-in-configuration-execution) (high, CVSS 7.2, published 4 Aug 2026) - [CVE-2026-8508: Zyxel WAX650S improper authentication in social_login.cgi](https://junglewise.ai/threats/cve-2026-8508-zyxel-wax650s-improper-authentication-in-social-login-cgi) (medium, CVSS 6.5, published 4 Aug 2026) - [CVE-2026-6837: Zyxel WAX650S command injection in export-cgi](https://junglewise.ai/threats/cve-2026-6837-zyxel-wax650s-command-injection-in-export-cgi) (high, CVSS 7.2, published 4 Aug 2026) - [CVE-2026-6952: Zyxel multiple devices command injection in syslog LogServer field](https://junglewise.ai/threats/cve-2026-6952-zyxel-multiple-devices-command-injection-in-syslog-logserver-field) (high, CVSS 7.2, published 21 Jul 2026) - [CVE-2026-7273: Zyxel GS1900 Series stack-based buffer overflow in CGI program](https://junglewise.ai/threats/cve-2026-7273-zyxel-gs1900-series-stack-based-buffer-overflow-in-cgi-program) (critical, exploited in the wild, CVSS 8.8, published 16 Jun 2026) - [CVE-2026-3871: Zyxel multiple CPE devices buffer overflow in UPnP DeletePortMapping](https://junglewise.ai/threats/cve-2026-3871-zyxel-multiple-cpe-devices-buffer-overflow-in-upnp) (medium, CVSS 6.5, published 2 Jun 2026) - [CVE-2026-3870: Zyxel VMG4005-B50B buffer overflow in UPnP AddPortMapping](https://junglewise.ai/threats/cve-2026-3870-zyxel-vmg4005-b50b-buffer-overflow-in-upnp-addportmapping) (medium, CVSS 6.5, published 2 Jun 2026) - [CVE-2026-4795: Zyxel GS1200v3 series missing authorization in log files](https://junglewise.ai/threats/cve-2026-4795-zyxel-gs1200v3-series-missing-authorization-in-log-files) (medium, CVSS 6.5, published 26 May 2026) - [CVE-2026-7287: Zyxel NWA1100-N buffer overflow in webs binary](https://junglewise.ai/threats/cve-2026-7287-zyxel-nwa1100-n-buffer-overflow-in-webs-binary) (high, CVSS 7.5, published 12 May 2026) - [CVE-2026-7257: Zyxel WRE6505 v2 Insecure Storage in Configuration File](https://junglewise.ai/threats/cve-2026-7257-zyxel-wre6505-v2-insecure-storage-in-configuration-file) (medium, CVSS 4.4, published 12 May 2026) - [CVE-2026-7256: Zyxel WRE6505 v2 command injection in CGI program](https://junglewise.ai/threats/cve-2026-7256-zyxel-wre6505-v2-command-injection-in-cgi-program) (high, CVSS 8.8, published 12 May 2026) - [CVE-2026-7255: Zyxel WRE6505 v2 improper authentication restriction in web interface](https://junglewise.ai/threats/cve-2026-7255-zyxel-wre6505-v2-improper-authentication-restriction-in-web) (medium, CVSS 6.5, published 12 May 2026) - [CVE-2026-1460: Zyxel multiple CPE and ONT devices command injection in DHCP DomainName](https://junglewise.ai/threats/cve-2026-1460-zyxel-multiple-cpe-and-ont-devices-command-injection-in-dhcp) (high, CVSS 7.2, published 28 Apr 2026) - [CVE-2026-0711: Zyxel Multiple Products command injection in EasyMesh APIs](https://junglewise.ai/threats/cve-2026-0711-zyxel-multiple-products-command-injection-in-easymesh-apis) (medium, CVSS 6.8, published 28 Apr 2026) - [CVE-2026-6058: Zyxel WRE6505 v2 improper encoding DoS in CGI program](https://junglewise.ai/threats/cve-2026-6058-zyxel-wre6505-v2-improper-encoding-dos-in-cgi-program) (medium, CVSS 4.5, published 21 Apr 2026) - [CVE-2025-6599: An uncontrolled resource consumption vulnerability in the web server of Zyxel DX3301-T0 firmware version…](https://junglewise.ai/threats/cve-2025-6599-an-uncontrolled-resource-consumption-vulnerability-in-the-web) (medium, CVSS 5.3, published 18 Nov 2025) - [CVE-2025-9133: A missing authorization vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40, USG FLEX series…](https://junglewise.ai/threats/cve-2025-9133-a-missing-authorization-vulnerability-in-zyxel-atp-series-firmware) (high, CVSS 8.1, published 21 Oct 2025) - [CVE-2025-8078: A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40…](https://junglewise.ai/threats/cve-2025-8078-a-post-authentication-command-injection-vulnerability-in-zyxel-atp) (high, CVSS 7.2, published 21 Oct 2025) - [CVE-2024-40890: Zyxel DSL CPE OS Command Injection Vulnerability](https://junglewise.ai/threats/cve-2024-40890-zyxel-dsl-cpe-os-command-injection-vulnerability) (critical, exploited in the wild, CVSS 8.8, published 11 Feb 2025) - [CVE-2024-40891: Zyxel DSL CPE OS Command Injection Vulnerability](https://junglewise.ai/threats/cve-2024-40891-zyxel-dsl-cpe-os-command-injection-vulnerability) (critical, exploited in the wild, CVSS 8.8, published 11 Feb 2025) - [CVE-2024-11667: Zyxel Multiple Firewalls Path Traversal Vulnerability](https://junglewise.ai/threats/cve-2024-11667-zyxel-multiple-firewalls-path-traversal-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 3 Dec 2024) ## Most severe Zyxel vulnerabilities - [CVE-2024-11667: Zyxel Multiple Firewalls Path Traversal Vulnerability](https://junglewise.ai/threats/cve-2024-11667-zyxel-multiple-firewalls-path-traversal-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 3 Dec 2024) - [CVE-2017-18368: Zyxel P660HN-T1A Routers Command Injection Vulnerability](https://junglewise.ai/threats/cve-2017-18368-zyxel-p660hn-t1a-routers-command-injection-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 7 Aug 2023) - [CVE-2023-27992: Zyxel Multiple NAS Devices Command Injection Vulnerability](https://junglewise.ai/threats/cve-2023-27992-zyxel-multiple-nas-devices-command-injection-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 23 Jun 2023) - [CVE-2023-33010: Zyxel Multiple Firewalls Buffer Overflow Vulnerability](https://junglewise.ai/threats/cve-2023-33010-zyxel-multiple-firewalls-buffer-overflow-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 5 Jun 2023) - [CVE-2023-33009: Zyxel Multiple Firewalls Buffer Overflow Vulnerability](https://junglewise.ai/threats/cve-2023-33009-zyxel-multiple-firewalls-buffer-overflow-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 5 Jun 2023) - [CVE-2023-28771: Zyxel Multiple Firewalls OS Command Injection Vulnerability](https://junglewise.ai/threats/cve-2023-28771-zyxel-multiple-firewalls-os-command-injection-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 31 May 2023) - [CVE-2022-30525: Zyxel Multiple Firewalls OS Command Injection Vulnerability](https://junglewise.ai/threats/cve-2022-30525-zyxel-multiple-firewalls-os-command-injection-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 16 May 2022) - [CVE-2020-9054: Zyxel Multiple NAS Devices OS Command Injection Vulnerability](https://junglewise.ai/threats/cve-2020-9054-zyxel-multiple-nas-devices-os-command-injection-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 25 Mar 2022) - [CVE-2026-7273: Zyxel GS1900 Series stack-based buffer overflow in CGI program](https://junglewise.ai/threats/cve-2026-7273-zyxel-gs1900-series-stack-based-buffer-overflow-in-cgi-program) (critical, exploited in the wild, CVSS 8.8, published 16 Jun 2026) - [CVE-2024-40891: Zyxel DSL CPE OS Command Injection Vulnerability](https://junglewise.ai/threats/cve-2024-40891-zyxel-dsl-cpe-os-command-injection-vulnerability) (critical, exploited in the wild, CVSS 8.8, published 11 Feb 2025) ## Vulnerabilities per week 3 vulnerabilities in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 1 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 2 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Zyxel technologies - [Zyxel Firewalls](https://junglewise.ai/threats/technologies/firewalls): 5 vulnerabilities - [Zyxel Multiple Firewalls](https://junglewise.ai/threats/technologies/multiple-firewalls): 5 vulnerabilities - [Zyxel AX7501-B1 firmware](https://junglewise.ai/threats/technologies/ax7501-b1-firmware): 3 vulnerabilities - [Zyxel DX3300-T0](https://junglewise.ai/threats/technologies/dx3300-t0): 3 vulnerabilities - [Zyxel EX3501-T0](https://junglewise.ai/threats/technologies/ex3501-t0): 3 vulnerabilities - [Zyxel Nebula FWA515](https://junglewise.ai/threats/technologies/nebula-fwa515): 3 vulnerabilities - [Zyxel VMG4005-B50B](https://junglewise.ai/threats/technologies/vmg4005-b50b): 3 vulnerabilities - [Zyxel Wre6505](https://junglewise.ai/threats/technologies/wre6505): 3 vulnerabilities - [Zyxel Wre6505 Firmware](https://junglewise.ai/threats/technologies/wre6505-firmware): 3 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Zyxel vulnerabilities", https://junglewise.ai/threats/vendors/zyxel, 10 November 2026.