Known Vulnerabilities for Usg 1900 Firmware by Zyxel

Listed below are 5 of the newest known vulnerabilities associated with "Usg 1900 Firmware" by "Zyxel".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE	Shortened Description	Severity	Publish Date	Last Modified
CVE-2026-36611 json	Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 returns 128 bytes of uninitialized buffer when receiving POST reques...	Not Provided	2026-06-03	2026-06-03
CVE-2026-36603 json	Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 exposes 15 of 18 UPnP IGD actions without authentication on p...	Not Provided	2026-06-03	2026-06-03
CVE-2022-26532 json	A argument injection vulnerability in the 'packet-trace' CLI command of Zyxel USG/ZyWALL series firmware versions 4.09 throug...	7.8 - HIGH	2022-05-24	2022-06-19
CVE-2022-26531 json	Multiple improper input validation flaws were identified in some CLI commands of Zyxel USG/ZyWALL series firmware versions 4....	7.8 - HIGH	2022-05-24	2022-06-19
CVE-2022-0910 json	A downgrade from two-factor authentication to one-factor authentication vulnerability in the CGI program of Zyxel USG/ZyWALL ...	6.5 - MEDIUM	2022-05-24	2022-06-06
CVE-2022-0734 json	A cross-site scripting vulnerability was identified in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.35 thro...	6.1 - MEDIUM	2022-05-24	2022-06-06
CVE-2018-9129 json	ZyXEL ZyWALL/USG series devices have a Bleichenbacher vulnerability in their Internet Key Exchange (IKE) handshake implementa...	5.9 - MEDIUM	2018-08-15	2023-11-07

Known Affected Configurations (CPE V2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Zyxel	Usg 1900 Firmware	-