CVE-2022-26531

Published: May 24, 2022

Modified: Aug 3, 2024

PUBLISHED

CVSS v3.1

6.1

MEDIUM

Description

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.

Vendor	Product	Versions
Zyxel	USG/ZyWALL series firmware	affected `4.09 through 4.71`
Zyxel	USG FLEX series firmware	affected `4.50 through 5.21`
Zyxel	ATP series firmware	affected `4.32 through 5.21`
Zyxel	VPN series firmware	affected `4.30 through 5.21`
Zyxel	NSG series firmware	affected `1.00 through 1.33 Patch 4`
Zyxel	NXC2500 firmware	affected `<= 6.10(AAIG.3)`
Zyxel	NAP203 firmware	affected `<= 6.25(ABFA.7)`
Zyxel	NWA50AX firmware	affected `<= 6.25(ABYW.5)`
Zyxel	WAC500 firmware	affected `<= 6.30(ABVS.2)`
Zyxel	WAX510D firmware	affected `<= 6.30(ABTF.2)`