CVE-2023-28771

CVE-2023-28771 is an OS command injection in Zyxel devices (ZyWALL/USG, VPN, USG FLEX, ATP) due to improper error message handling. A unauthenticated attacker can remotely execute commands by sending crafted UDP/IKE-related packets to affected firmware: Zyxel ATP, USG FLEX, VPN, and ZyWALL/USG li...

CVE-2023-27991

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 50W firmware versions 4.16 through 5.35, USG20W-VPN firmware versions 4.16 through 5.35, and VPN series...

CVE-2023-22918

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 50W firmware versions 4.16 through 5.35, USG20W-VPN firmware versions 4.16 through 5.35, VPN series...

CVE-2023-27990

The cross-site scripting XSS vulnerability in Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50W firmware versions 4.16 through 5.35, USG20W-VPN firmware versions 4.16 through 5.35, and VPN series firmware versions 4.30 through...

CVE-2023-27991

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 50W firmware versions 4.16 through 5.35, USG20W-VPN firmware versions 4.16 through 5.35, and VPN series...

Cross site scripting

The cross-site scripting XSS vulnerability in Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50W firmware versions 4.16 through 5.35, USG20W-VPN firmware versions 4.16 through 5.35, and VPN series firmware versions 4.30 through...

Command injection

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 50W firmware versions 4.16 through 5.35, USG20W-VPN firmware versions 4.16 through 5.35, and VPN series...

CVE-2023-22916

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 FLEX 50W firmware versions 5.10 through 5.35, USG20W-VPN firmware versions 5.10 through 5.35, and VPN series firmware versions 5.00 through 5.35, which fails ...

CVE-2023-22913

A post-authentication command injection vulnerability in the “accountoperator.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote authenticated attacker to modify device configuration data,...

CVE-2023-22914

A path traversal vulnerability in the “accountprint.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote authenticated attacker with administrator privileges to execute unauthorized OS command...

CVE-2023-22915

A buffer overflow vulnerability in the “fbwififorward.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50W firmware versions 4.30 through 5.35, USG20W-VPN firmware versions 4.30 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could...

Command injection

A post-authentication command injection vulnerability in the “accountoperator.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote authenticated attacker to modify device configuration data,...

Buffer overflow

A buffer overflow vulnerability in the “fbwififorward.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50W firmware versions 4.30 through 5.35, USG20W-VPN firmware versions 4.30 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could...

Buffer overflow

A buffer overflow vulnerability in the “sdwanifaceipc” binary of Zyxel ATP series firmware versions 5.10 through 5.32, USG FLEX series firmware versions 5.00 through 5.32, USG FLEX 50W firmware versions 5.10 through 5.32, USG20W-VPN firmware versions 5.10 through 5.32, and VPN series firmware...

Path traversal

A path traversal vulnerability in the “accountprint.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote authenticated attacker with administrator privileges to execute unauthorized OS command...

CVE-2023-22916

CVE-2023-22916 affects Zyxel devices including ATP series (5.10–5.35), USG FLEX series (5.00–5.35), USG FLEX 50(W) (5.10–5.35), USG20(W)-VPN (5.10–5.35), and VPN series (5.00–5.35). Root cause: improper sanitization in the configuration parser. Impact: remote unauthenticated attackers could modif...

CVE-2023-22915

CVE-2023-22915 affects Zyxel USG FLEX family (USG FLEX 4.50–5.35; USG FLEX 50(W) 4.30–5.35; USG20(W)-VPN 4.30–5.35; VPN series 4.30–5.35). Root cause: buffer overflow in fbwifi_forward.cgi when Facebook WiFi is enabled. Impact: remote unauthenticated attacker can cause Denial-of-Service by sendin...

CVE-2023-22913

CVE-2023-22913 describes a post-authentication command injection in Zyxel’s account_operator.cgi used by USG FLEX and VPN firmware: USG FLEX 4.50–5.35 and VPN 4.30–5.35. An authenticated attacker could inject commands to modify device configuration data, leading to DoS. The technical details in t...

CVE-2023-27991

Zyxel vulnerability CVE-2023-27991 is a post-authentication command injection in the CLI of Zyxel firewall devices (ATP, USG FLEX, USG FLEX 50(W), USG20(W)-VPN, VPN, ZyWALL/USG) that could let an authenticated attacker execute OS commands remotely. Affected firmware ranges include ATP 4.32–5.35, ...

CVE-2023-22918

CVE-2023-22918 describes a post-authentication information exposure in Zyxel devices' CGI program that could allow a remote authenticated attacker to retrieve encrypted administrator information. Affected are Zyxel products: ATP series (firmware 4.32–5.35); USG FLEX series (4.50–5.35); USG FLEX 5...