Zyxel Vpn300 Firmware — known CVE vulnerabilities

Every CVE whose affected-product data names Zyxel Vpn300 Firmware, ordered by CVSS severity, with EPSS exploit prediction and CISA KEV status.

CVEs (24)

• CVE-2023-28771 — CVSS 9.8 (critical) — actively exploited: Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through…
• CVE-2020-9054 — CVSS 9.8 (critical) — actively exploited: Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection…
• CVE-2022-0342 — CVSS 9.8 (critical): An authentication bypass vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.20 through 4.70, USG FLEX series…
• CVE-2023-33010 — CVSS 9.8 (critical) — actively exploited: A buffer overflow vulnerability in the ID processing function in Zyxel ATP series firmware versions 4.32 through 5.36 Patch 1, USG FLEX…
• CVE-2020-29583 — CVSS 9.8 (critical) — actively exploited: Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this…
• CVE-2022-30525 — CVSS 9.8 (critical) — actively exploited: 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…
• CVE-2023-33009 — CVSS 9.8 (critical) — actively exploited: A buffer overflow vulnerability in the notification function in Zyxel ATP series firmware versions 4.60 through 5.36 Patch 1, USG FLEX…
• CVE-2023-27991 — CVSS 8.8 (high): The post-authentication command injection vulnerability in the CLI command of Zyxel ATP series firmware versions 4.32 through 5.35, USG…
• CVE-2023-22916 — CVSS 8.1 (high): The configuration parser of Zyxel ATP series firmware versions 5.10 through 5.35, USG FLEX series firmware versions 5.00 through 5.35, USG…
• CVE-2023-22913 — CVSS 8.1 (high): A post-authentication command injection vulnerability in the “account_operator.cgi” CGI program of Zyxel USG FLEX series firmware…
• CVE-2022-26532 — CVSS 7.8 (high): A argument injection vulnerability in the 'packet-trace' CLI command of Zyxel USG/ZyWALL series firmware versions 4.09 through 4.71, USG…
• CVE-2022-30526 — CVSS 7.8 (high): A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG…
• CVE-2023-22917 — CVSS 7.5 (high): A buffer overflow vulnerability in the “sdwan_iface_ipc” binary of Zyxel ATP series firmware versions 5.10 through 5.32, USG FLEX…
• CVE-2023-22915 — CVSS 7.5 (high): A buffer overflow vulnerability in the “fbwifi_forward.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35…
• CVE-2023-22914 — CVSS 7.2 (high): A path traversal vulnerability in the “account_print.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and…
• CVE-2022-38547 — CVSS 7.2 (high): A post-authentication command injection vulnerability in the CLI command of Zyxel ZyWALL/USG series firmware versions 4.20 through 4.72…
• CVE-2022-2030 — CVSS 6.5 (medium): A directory traversal vulnerability caused by specific character sequences within an improperly sanitized URL was identified in some CGI…
• CVE-2022-0910 — CVSS 6.5 (medium): A downgrade from two-factor authentication to one-factor authentication vulnerability in the CGI program of Zyxel USG/ZyWALL series…
• CVE-2023-22918 — CVSS 6.5 (medium): A post-authentication information exposure vulnerability in the CGI program of Zyxel ATP series firmware versions 4.32 through 5.35, USG…
• CVE-2019-9955 — CVSS 6.1 (medium): On Zyxel ATP200, ATP500, ATP800, USG20-VPN, USG20W-VPN, USG40, USG40W, USG60, USG60W, USG110, USG210, USG310, USG1100, USG1900…
• CVE-2022-26531 — CVSS 6.1 (medium): Multiple improper input validation flaws were identified in some CLI commands of Zyxel USG/ZyWALL series firmware versions 4.09 through…
• CVE-2022-0734 — CVSS 5.8 (medium): A cross-site scripting vulnerability was identified in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.35 through 4.70, USG…
• CVE-2023-27990 — CVSS 4.8 (medium): The cross-site scripting (XSS) vulnerability in Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions…
• CVE-2022-40603 — CVSS 4.7 (medium): A cross-site scripting (XSS) vulnerability in the CGI program of Zyxel ZyWALL/USG series firmware versions 4.30 through 4.72, VPN series…