Vulnerabilities > Zyxel > Nas326 Firmware > 5.21.aazf.7.c0
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2023-11-30 | CVE-2023-35137 | Unspecified vulnerability in Zyxel Nas326 Firmware and Nas542 Firmware An improper authentication vulnerability in the authentication module of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to obtain system information by sending a crafted URL to a vulnerable device. | 7.5 |
| 2023-06-19 | CVE-2023-27992 | OS Command Injection vulnerability in Zyxel Nas326 Firmware, Nas540 Firmware and Nas542 Firmware The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request. | 9.8 |
| 2023-05-30 | CVE-2023-27988 | OS Command Injection vulnerability in Zyxel Nas326 Firmware, Nas540 Firmware and Nas542 Firmware The post-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.13)C0 could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device remotely. | 7.2 |
| 2022-09-06 | CVE-2022-34747 | Use of Externally-Controlled Format String vulnerability in Zyxel Nas326 Firmware 5.21/5.21(Aazf.7)C0 A format string vulnerability in Zyxel NAS326 firmware versions prior to V5.21(AAZF.12)C0 could allow an attacker to achieve unauthorized remote code execution via a crafted UDP packet. | 9.8 |
| 2020-08-06 | CVE-2020-13365 | Improper Authentication vulnerability in Zyxel products Certain Zyxel products have a locally accessible binary that allows a non-root user to generate a password for an undocumented user account that can be used for a TELNET session as root. | 8.8 |
| 2020-08-06 | CVE-2020-13364 | Unspecified vulnerability in Zyxel products A backdoor in certain Zyxel products allows remote TELNET access via a CGI script. | 8.8 |