CVE-2022-26532

HIGH

Zyxel USG/ZyWALL series <4.71 - Command Injection

Title source: llm

Description

A argument injection vulnerability in the 'packet-trace' CLI command 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 execute arbitrary OS commands by including crafted arguments to the CLI command.

References (3)

Scores

CVSS v3 7.8
EPSS 0.0165
EPSS Percentile 81.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

CWE
CWE-78 CWE-88
Status published

Affected Products (50)

zyxel/vpn100_firmware < 5.21
zyxel/vpn1000_firmware < 5.21
zyxel/vpn300_firmware < 5.21
zyxel/vpn50_firmware < 5.21
zyxel/atp100_firmware < 5.21
zyxel/atp100w_firmware < 5.21
zyxel/atp200_firmware < 5.21
zyxel/atp500_firmware < 5.21
zyxel/atp700_firmware < 5.21
zyxel/atp800_firmware < 5.21
zyxel/usg_110_firmware < 4.71
zyxel/usg_1100_firmware < 4.71
zyxel/usg_1900_firmware < 4.71
zyxel/usg_20w_firmware < 4.71
zyxel/usg_20w-vpn_firmware < 4.71
... and 35 more

Timeline

Published May 24, 2022
Tracked Since Feb 18, 2026