NetSight
IP …
medium6.1

CVE-2022-26531

Multiple improper input validation flaws were identified in some CLI commands of Zyxel USG/ZyWALL series firmware versions 4.09 through 4.71, USG FLEX series f…

Impact

Multiple improper input validation flaws were identified in some CLI commands of Zyxel USG/ZyWALL series firmware versions 4.09 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series firmware versions 4.32 through 5.21, VPN series firmware versions 4.30 through 5.21, NSG series firmware versions 1.00 through 1.33 Patch 4, NXC2500 firmware version 6.10(AAIG.3) and earlier versions, NAP203 firmware version 6.25(ABFA.7) and earlier versions, NWA50AX firmware version 6.25(ABYW.5) and earlier versions, WAC500 firmware version 6.30(ABVS.2) and earlier versions, and WAX510D firmware version 6.30(ABTF.2) and earlier versions, that could allow a local authenticated attacker to cause a buffer overflow or a system crash via a crafted payload.

Affected products

VendorProductAffected versions
ZyxelVpn100 Firmware
from 4.30 through 5.21
ZyxelVpn1000 Firmware
from 4.30 through 5.21
ZyxelVpn300 Firmware
from 4.30 through 5.21
ZyxelVpn50 Firmware
from 4.30 through 5.21
ZyxelAtp100 Firmware
from 4.32 through 5.21
ZyxelAtp100w Firmware
from 4.32 through 5.21
ZyxelAtp200 Firmware
from 4.32 through 5.21
ZyxelAtp500 Firmware
from 4.32 through 5.21
ZyxelAtp700 Firmware
from 4.32 through 5.21
ZyxelAtp800 Firmware
from 4.32 through 5.21
ZyxelUsg 110 Firmware
from 4.09 through 4.71
ZyxelUsg 1100 Firmware
from 4.09 through 4.71

Weakness classification

CWE-20

References