CVE-2023-35140

The improper privilege management vulnerability in the Zyxel GS1900-24EP switch firmware version V2.70ABTO.5 could allow an authenticated local user with read-only access to modify system settings on a vulnerable device...

CVE-2022-45853

The privilege escalation vulnerability in the Zyxel GS1900-8 firmware version V2.70AAHH.3 and the GS1900-8HP firmware version V2.70AAHI.3 could allow an authenticated, local attacker with administrator privileges to execute some system commands as 'root' on a vulnerable device via SSH...

CVE-2022-34746

An insufficient entropy vulnerability caused by the improper use of randomness sources with low entropy for RSA key pair generation was found in Zyxel GS1900 series firmware versions prior to V2.70. This vulnerability could allow an unauthenticated attacker to retrieve a private key by factoring...

CVE-2021-35032

A vulnerability in the 'libsal.so' of the Zyxel GS1900 series firmware version 2.60 could allow an authenticated local user to execute arbitrary OS commands via a crafted function call...

CVE-2019-15801

An issue was discovered on Zyxel GS1900 devices with firmware before 2.50AAHH.0C0. The firmware image contains encrypted passwords that are used to authenticate users wishing to access a diagnostics or password-recovery menu. Using the hardcoded cryptographic key found elsewhere in the firmware,...

CVE-2019-15803

An issue was discovered on Zyxel GS1900 devices with firmware before 2.50AAHH.0C0. Through an undocumented sequence of keypresses, undocumented functionality is triggered. A diagnostics shell is triggered via CTRL-ALT-t, which prompts for the password returned by fdssyspassDebugPasswdret. The...

CVE-2019-15804

An issue was discovered on Zyxel GS1900 devices with firmware before 2.50AAHH.0C0. By sending a signal to the CLI process, undocumented functionality is triggered. Specifically, a menu can be triggered by sending the SIGQUIT signal to the CLI application e.g., through CTRL+\ via SSH. The access...

CVE-2019-15800

An issue was discovered on Zyxel GS1900 devices with firmware before 2.50AAHH.0C0. Due to lack of input validation in the cmdsystracerouteexec, cmdsysarpclear, and cmdsyspingexec functions in the libclicmd.so library contained in the firmware, an attacker could leverage these functions to call...

CVE-2019-15802

An issue was discovered on Zyxel GS1900 devices with firmware before 2.50AAHH.0C0. The firmware hashes and encrypts passwords using a hardcoded cryptographic key in salutilstrencrypt in libsal.so.0.0. The parameters salt, IV, and key data are used to encrypt and decrypt all passwords using AES256...

The vulnerability of the CGI microprogramming interface of Zyxel’s GS1900 series routers allows a hacker to cause a service failure.

The vulnerability of the CGI microprogramming interface of Zyxel’s GS1900 series routers lies in the execution of operations beyond the buffer boundaries in memory. Exploiting this vulnerability allows a remote attacker to cause service interruptions...

The vulnerability of the CGI microprogramming interface of Zyxel’s GS1900 series routers allows attackers to execute arbitrary commands.

The vulnerability of the CGI microprogramming interface of Zyxel routers series GS1900 is related to the lack of measures taken to neutralize special elements used in the operating system commands. Exploiting this vulnerability allows a remote attacker to execute arbitrary commands...

CVE-2024-8882

A buffer overflow vulnerability in the CGI program in the Zyxel GS1900-48 switch firmware version V2.80AAHN.1C0 and earlier could allow an authenticated, LAN-based attacker with administrator privileges to cause denial of service DoS conditions via a crafted URL...

CVE-2024-8881

A post-authentication command injection vulnerability in the CGI program in the Zyxel GS1900-48 switch firmware version V2.80AAHN.1C0 and earlier could allow an authenticated, LAN-based attacker with administrator privileges to execute some operating system OS commands on an affected device by...

CVE-2024-8881

A post-authentication command injection vulnerability in the CGI program in the Zyxel GS1900-48 switch firmware version V2.80AAHN.1C0 and earlier could allow an authenticated, LAN-based attacker with administrator privileges to execute some operating system OS commands on an affected device by...

CVE-2024-8882

A buffer overflow vulnerability in the CGI program in the Zyxel GS1900-48 switch firmware version V2.80AAHN.1C0 and earlier could allow an authenticated, LAN-based attacker with administrator privileges to cause denial of service DoS conditions via a crafted URL...

CVE-2024-8882

The CVE-2024-8882 vulnerability affects Zyxel GS1900-48 switches with firmware v2.80(AAHN.1)C0 and earlier. It is caused by a buffer overflow in the switch’s CGI program that, when accessed by an authenticated administrator over the LAN via a crafted URL, can cause a denial of service. Impact is ...

CVE-2024-8881

A post-authentication command injection vulnerability in the CGI program in the Zyxel GS1900-48 switch firmware version V2.80AAHN.1C0 and earlier could allow an authenticated, LAN-based attacker with administrator privileges to execute some operating system OS commands on an affected device by...

CVE-2024-8881

CVE-2024-8881 describes a post-authentication command-injection in the CGI component of Zyxel GS1900-48 switches. Affected firmware: V2.80(AAHN.1)C0 and earlier. Exploitation requires an authenticated attacker with administrator privileges on the LAN, who can send a crafted HTTP request to execut...

Zyxel GS1900 安全漏洞

The Zyxel GS1900 is a managed switch from China Heqin Zyxel. A security vulnerability exists in Zyxel GS1900 V2.80AAHN.1C0 and earlier versions, which stems from the presence of a buffer overflow vulnerability that could allow an authenticated attacker with administrator privileges to trigger a...

PT-2024-8145 · Zyxel · Zyxel Gs1900-48

Name of the Vulnerable Software and Affected Versions: Zyxel GS1900-48 switch firmware version V2.80AAHN.1C0 and earlier Description: A buffer overflow vulnerability in the CGI program could allow an authenticated, LAN-based attacker with administrator privileges to cause denial of service DoS...