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...

Zyxel Firewalls Under Attack! Urgent Patching Required

The U.S. Cybersecurity and Infrastructure Security Agency CISA on Monday placed two recently disclosed flaws in Zyxel firewalls to its Known Exploited Vulnerabilities KEV catalog, based on evidence of active exploitation. The vulnerabilities, tracked as CVE-2023-33009 and CVE-2023-33010, are buff...

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...

PT-2022-22313 · Zyxel · Zyxel Gs1900

Name of the Vulnerable Software and Affected Versions: Zyxel GS1900 series firmware versions prior to V2.70 Description: An insufficient entropy issue, caused by the improper use of randomness sources with low entropy for RSA key pair generation, affects the web administration interface. This cou...

CVE-2022-34746: Insufficient Entropy

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-2021-35031: Improper Neutralization of Special Elements used in an OS Command

A vulnerability in the TFTP client of Zyxel GS1900 series firmware, XGS1210 series firmware, and XGS1250 series firmware, which could allow an authenticated LAN user to execute arbitrary OS commands via the GUI of the vulnerable device...