Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this account can be found in cleartext in the firmware. This account can be used by someone to login to the ssh server or web interface with admin privileges.
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No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| zyxel | usg20-vpn_firmware | - | - |
| zyxel | usg20w-vpn_firmware | - | - |
| zyxel | usg40_firmware | - |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
30
Affected Products
15
References
zyxel / usg20-vpn_firmware
| - |
| zyxel | usg40w_firmware | - | - |
| zyxel | usg60_firmware | - | - |
| zyxel | usg60w_firmware | - | - |
| zyxel | usg110_firmware | - | - |
| zyxel | usg210_firmware | - | - |
| zyxel | usg310_firmware | - | - |
| zyxel | usg1100_firmware | - | - |
| zyxel | usg1900_firmware | - | - |
| zyxel | usg2200_firmware | - | - |
| zyxel | zywall110_firmware | - | - |
| zyxel | zywall310_firmware | - | - |
| zyxel | zywall1100_firmware | - | - |
| zyxel | atp100_firmware | - | - |
| zyxel | atp100w_firmware | - | - |
| zyxel | atp200_firmware | - | - |
| zyxel | atp500_firmware | - | - |
| zyxel | atp700_firmware | - | - |
| zyxel | atp800_firmware | - | - |
| zyxel | vpn50_firmware | - | - |
| zyxel | vpn100_firmware | - | - |
| zyxel | vpn300_firmware | - | - |
| zyxel | vpn1000_firmware | - | - |
| zyxel | usg_flex_100_firmware | - | - |
| zyxel | usg_flex_100w_firmware | - | - |
| zyxel | usg_flex_200_firmware | - | - |
| zyxel | usg_flex_500_firmware | - | - |
| zyxel | usg_flex_700_firmware | - | - |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability
Impact