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zyxel nas540 firmware vulnerabilities and exploits

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CVE-2023-27988

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.
Zyxel Nas326 FirmwareZyxel Nas540 FirmwareZyxel Nas542 Firmware
NA

CVE-2023-27992

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 malicious user to exec...
Zyxel Nas326 FirmwareZyxel Nas540 FirmwareZyxel Nas542 Firmware
801
VMScore

CVE-2020-13364

A backdoor in certain Zyxel products allows remote TELNET access via a CGI script. This affects NAS520 V5.21(AASZ.4)C0, V5.21(AASZ.0)C0, V5.11(AASZ.3)C0, and V5.11(AASZ.0)C0; NAS542 V5.11(ABAG.0)C0, V5.20(ABAG.1)C0, and V5.21(ABAG.3)C0; NSA325 v2_V4.81(AALS.0)C0 and V4.81(AAAJ.1)...
Zyxel Nas326 FirmwareZyxel Nas520 FirmwareZyxel Nas540 FirmwareZyxel Nas542 Firmware
801
VMScore

CVE-2020-13365

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. This affects NAS520 V5.21(AASZ.4)C0, V5.21(AASZ.0)C0, V5.11(AASZ.3)C0, and V5.11(AASZ.0)C0; N...
Zyxel Nas326 FirmwareZyxel Nas520 FirmwareZyxel Nas540 FirmwareZyxel Nas542 Firmware
890
VMScore

CVE-2020-9054

Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated malicious user to execute arbitrary code on a vulnerable device. ZyXEL NAS devices achieve a...
Zyxel Nas326 FirmwareZyxel Nas520 FirmwareZyxel Nas540 FirmwareZyxel Nas542 FirmwareZyxel Atp100 FirmwareZyxel Atp200 FirmwareZyxel Atp500 FirmwareZyxel Atp800 FirmwareZyxel Usg20-vpn FirmwareZyxel Usg20w-vpn FirmwareZyxel Usg40 FirmwareZyxel Usg40w FirmwareZyxel Usg60 FirmwareZyxel Usg60w FirmwareZyxel Usg110 FirmwareZyxel Usg210 FirmwareZyxel Usg310 FirmwareZyxel Usg1100 FirmwareZyxel Usg1900 FirmwareZyxel Usg2200 FirmwareZyxel Vpn50 FirmwareZyxel Vpn100 Firmware
VMScore
CVSSv2
CVSSv3
VMScore
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