Zyxel Atp Series Firmware vulnerabilities

CVE-2022-30525 [CRITICAL] CWE-78 CVE-2022-30525: A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5 A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 50(W) firmware versions 5.10 through 5.21

CVE-2023-28771 [CRITICAL] CWE-78 CVE-2023-28771: Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through 5.35, USG FLEX series firmware versions 4.60 through 5.35, and ATP series firmware versions 4.60 through 5.35, which could allow an unauthenticated attacker to execute some OS commands remotely by sending crafted

CVE-2023-33010 [CRITICAL] CWE-120 CVE-2023-33010: A buffer overflow vulnerability in the ID processing function in Zyxel ATP series firmware versions A buffer overflow vulnerability in the ID processing function in Zyxel ATP series firmware versions 4.32 through 5.36 Patch 1, USG FLEX series firmware versions 4.50 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.25 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.25 through 5.36 Patch 1, VPN series firmware versions 4.30 through 5.

CVE-2023-33009 [CRITICAL] CWE-120 CVE-2023-33009: A buffer overflow vulnerability in the notification function in Zyxel ATP series firmware versions 4 A buffer overflow vulnerability in the notification function in Zyxel ATP series firmware versions 4.60 through 5.36 Patch 1, USG FLEX series firmware versions 4.60 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.60 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.60 through 5.36 Patch 1, VPN series firmware versions 4.60 through 5.

CVE-2024-11667 [CRITICAL] CWE-22 CVE-2024-11667: A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware ver A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware versions V5.00 through V5.38, USG FLEX series firmware versions V5.00 through V5.38, USG FLEX 50(W) series firmware versions V5.10 through V5.38, and USG20(W)-VPN series firmware versions V5.10 through V5.38 could allow an attacker to download or upload

CVE-2022-0342 [CRITICAL] CWE-287 CVE-2022-0342: An authentication bypass vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versio An authentication bypass vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.20 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.32 through 5.20, VPN series firmware versions 4.30 through 5.20, and NSG series firmware versions V1.20 through V1.33 Patch 4, which could allow

CVE-2024-42057 [HIGH] CWE-78 CVE-2024-42057: A command injection vulnerability in the IPSec VPN feature of Zyxel ATP series firmware versions fro 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 from V4.50 through V5.38, USG FLEX 50(W) series firmware versions from V4.16 through V5.38, and USG20(W)-VPN series firmware versions from V4.16 through V5.38 could allow an unauthenticated attacke

CVE-2023-33012 [HIGH] CWE-78 CVE-2023-33012: A command injection vulnerability in the configuration parser of the Zyxel ATP series firmware versi A command injection vulnerability in the configuration parser of the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50(W) series firmware versions 5.10 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 5.10 through 5.36 Patch 2, and VPN series firmware versio

CVE-2022-26531 [HIGH] CWE-20 CVE-2022-26531: Multiple improper input validation flaws were identified in some CLI commands of Zyxel USG/ZyWALL se 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 series firmware versions 4.32 through 5.21, VPN series firmware versions 4.30 through 5.21, NSG series firmware versions 1.00 through 1.33 Patch 4, NXC2500

CVE-2021-35029 [CRITICAL] CWE-287 CVE-2021-35029: An authentication bypasss vulnerability in the web-based management interface of Zyxel USG/Zywall se 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 through 5.01, which could allow a remote attacker to execute arbitrary commands on an affected device.

CVE-2022-30526 [HIGH] CWE-269 CVE-2022-30526: A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firm A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmw

CVE-2025-9133 [HIGH] CWE-862 CVE-2025-9133: A missing authorization vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40 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 V5.40, USG FLEX 50(W) series firmware versions from V4.16 through V5.40, and USG20(W)-VPN series firmware versions from V4.16 through V5.40 could allow a semi-authenticated attacker—who has completed

CVE-2023-27991 [HIGH] CWE-78 CVE-2023-27991: The post-authentication command injection vulnerability in the CLI command of Zyxel ATP series firmw The post-authentication command injection vulnerability in the CLI command of Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could all

CVE-2023-6764 [HIGH] CWE-134 CVE-2023-6764: A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an at

CVE-2025-8078 [HIGH] CWE-78 CVE-2025-8078: A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4. A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40, USG FLEX series firmware versions from V4.50 through V5.40, USG FLEX 50(W) series firmware versions from V4.16 through V5.40, and USG20(W)-VPN series firmware versions from V4.16 through V5.40 could allow an authenticated attacker with ad

CVE-2025-11730 [HIGH] CWE-78 CVE-2025-11730: A post‑authentication command injection vulnerability in the Dynamic DNS (DDNS) configuration CLI co A post‑authentication command injection vulnerability in the Dynamic DNS (DDNS) configuration CLI command in Zyxel ATP series firmware versions from V5.35 through V5.41, USG FLEX series firmware versions from V5.35 through V5.41, USG FLEX 50(W) series firmware versions from V5.35 through V5.41, and USG20(W)-VPN series firmware versions from V5.35 throu

CVE-2022-26532 [HIGH] CWE-88 CVE-2022-26532: A argument injection vulnerability in the 'packet-trace' CLI command of Zyxel USG/ZyWALL series firm 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 firmware versions 4.32 through 5.21, VPN series firmware versions 4.30 through 5.21, NSG series firmware versions 1.00 through 1.33 Patch 4, NXC2500 firmware

CVE-2023-28767 [HIGH] CWE-78 CVE-2023-28767: The configuration parser fails to sanitize user-controlled input in the Zyxel ATP series firmware ve The configuration parser fails to sanitize user-controlled input in the Zyxel ATP series firmware versions 5.10 through 5.36, USG FLEX series firmware versions 5.00 through 5.36, USG FLEX 50(W) series firmware versions 5.10 through 5.36, USG20(W)-VPN series firmware versions 5.10 through 5.36, and VPN series firmware versions 5.00 through 5.36. An una

CVE-2023-33011 [HIGH] CWE-134 CVE-2023-33011: A format string vulnerability in the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, U A format string vulnerability in the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50(W) series firmware versions 5.10 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 5.10 through 5.36 Patch 2, and VPN series firmware versions 5.00 through 5.36 Patch 2, c

CVE-2022-38547 [HIGH] CWE-78 CVE-2022-38547: A post-authentication command injection vulnerability in the CLI command of Zyxel ZyWALL/USG series A post-authentication command injection vulnerability in the CLI command of Zyxel ZyWALL/USG series firmware versions 4.20 through 4.72, VPN series firmware versions 4.30 through 5.32, USG FLEX series firmware versions 4.50 through 5.32, and ATP series firmware versions 4.32 through 5.32, which could allow an authenticated attacker with administrator pr