Zyxel GS1900-48hp Firmware vulnerabilities

9 CVEs affecting Zyxel GS1900-48hp Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2021-35032, published 2021-12-28.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2019-15800, published 2019-11-14. Critical severity, CVSS 9.8. EPSS: 3.9% chance of exploitation in the next 30 days. An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. Due to lack of input validation in the cmd_sys_traceroute_exec(), cmd_sys_arp_clear(), and cmd_sys_ping_exec()…
CVE-2019-15799, published 2019-11-14. High severity, CVSS 8.8. EPSS: 2.3% chance of exploitation in the next 30 days. An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. User accounts created through the web interface of the device, when given non-admin level privileges, have the…
CVE-2019-15802, published 2019-11-14. Medium severity, CVSS 5.9. EPSS: 1.5% chance of exploitation in the next 30 days. An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. The firmware hashes and encrypts passwords using a hardcoded cryptographic key in sal_util_str_encrypt() in…
CVE-2019-15801, published 2019-11-14. High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days. An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. The firmware image contains encrypted passwords that are used to authenticate users wishing to access a…
CVE-2019-15803, published 2019-11-14. Critical severity, CVSS 9.1. EPSS: 1.3% chance of exploitation in the next 30 days. An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. Through an undocumented sequence of keypresses, undocumented functionality is triggered. A diagnostics shell is…
CVE-2019-15804, published 2019-11-14. High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days. An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. By sending a signal to the CLI process, undocumented functionality is triggered. Specifically, a menu can be…
CVE-2021-35031, published 2021-12-28. High severity, CVSS 8.0. EPSS: 0.5% chance of exploitation in the next 30 days. 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…
CVE-2021-35030, published 2021-07-26. Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days. A vulnerability was found in the CGI program in Zyxel GS1900-8 firmware version V2.60, that did not properly sterilize packet contents and could allow an authenticated, local user to perform a…
CVE-2021-35032, published 2021-12-28. High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days. 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.