Home/CVE/A argument injection vulnerability in the 'packet-trace' CLI command of Zyxel USG/ZyWALL series firmware versions 4.09 t
CVE

CVE-2022-26532

A argument injection vulnerability in the 'packet-trace' CLI command of Zyxel USG/ZyWALL series firmware versions 4.09 t

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.

HIGH · CVSS 7.8 EPSS 0.01652
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
▤

Affected Products & Versions

48
zyxel vpn100 firmware>= 4.30 and <= 5.21
zyxel vpn1000 firmware>= 4.30 and <= 5.21
zyxel vpn300 firmware>= 4.30 and <= 5.21
zyxel vpn50 firmware>= 4.30 and <= 5.21
zyxel atp100 firmware>= 4.32 and <= 5.21
zyxel atp100w firmware>= 4.32 and <= 5.21
zyxel atp200 firmware>= 4.32 and <= 5.21
zyxel atp500 firmware>= 4.32 and <= 5.21
⚠

Public Exploits & PoCs

1
pocpacketstormsecurity.com · Zyxel-Buffer-Overflow-Format-String-Command-Injection.htmlpacketstormsecurity.com
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · security@zyxel.com.tw
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 May 2022 · 06:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2022/Jun/15
https://www.zyxel.com/support/multiple-vulnerabilities-of-firewalls-AP-controllers-and-APs.shtmlVendor Advisory
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