Zyxel Multiple Firewalls OS Command Injection Vulnerability

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Summary

CVECVE-2022-30525
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-05-12 14:15:00 UTC
Updated2022-10-19 18:32:00 UTC
DescriptionA OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 50(W) firmware versions 5.10 through 5.21 Patch 1, USG20(W)-VPN firmware versions 5.10 through 5.21 Patch 1, ATP series firmware versions 5.10 through 5.21 Patch 1, VPN series firmware versions 4.60 through 5.21 Patch 1, which could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.

Risk And Classification

EPSS: 0.944450000 probability, percentile 0.999920000 (date 2026-04-03)

CISA KEV: Listed on 2022-05-16; due 2022-06-06; ransomware use Unknown

Problem Types: CWE-78

CISA Known Exploited Vulnerability

VendorZyxel
ProductMultiple Firewalls
NameZyxel Multiple Firewalls OS Command Injection Vulnerability
Required ActionApply updates per vendor instructions.
Noteshttps://nvd.nist.gov/vuln/detail/CVE-2022-30525

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Zyxel Atp100 - All All All
Hardware Zyxel Atp100w - All All All
Operating System Zyxel Atp100w Firmware All All All All
Operating System Zyxel Atp100 Firmware All All All All
Hardware Zyxel Atp200 - All All All
Operating System Zyxel Atp200 Firmware All All All All
Hardware Zyxel Atp500 - All All All
Operating System Zyxel Atp500 Firmware All All All All
Hardware Zyxel Atp700 - All All All
Operating System Zyxel Atp700 Firmware All All All All
Hardware Zyxel Atp800 - All All All
Operating System Zyxel Atp800 Firmware All All All All
Hardware Zyxel Usg20w-vpn - All All All
Operating System Zyxel Usg20w-vpn Firmware All All All All
Hardware Zyxel Usg Flex 100w - All All All
Operating System Zyxel Usg Flex 100w Firmware All All All All
Hardware Zyxel Usg Flex 200 - All All All
Operating System Zyxel Usg Flex 200 Firmware All All All All
Hardware Zyxel Usg Flex 500 - All All All
Operating System Zyxel Usg Flex 500 Firmware All All All All
Hardware Zyxel Usg Flex 50w - All All All
Operating System Zyxel Usg Flex 50w Firmware All All All All
Hardware Zyxel Usg Flex 700 - All All All
Operating System Zyxel Usg Flex 700 Firmware All All All All
Hardware Zyxel Vpn100 - All All All
Hardware Zyxel Vpn1000 - All All All
Operating System Zyxel Vpn1000 Firmware All All All All
Operating System Zyxel Vpn100 Firmware All All All All
Hardware Zyxel Vpn300 - All All All
Operating System Zyxel Vpn300 Firmware All All All All
Hardware Zyxel Vpn50 - All All All
Operating System Zyxel Vpn50 Firmware All All All All

References

ReferenceSourceLinkTags
Zyxel Firewall ZTP Unauthenticated Command Injection ≈ Packet Storm MISC packetstormsecurity.com
Zyxel Firewall SUID Binary Privilege Escalation ≈ Packet Storm MISC packetstormsecurity.com
Zyxel security advisory for OS command injection vulnerability of firewalls | Zyxel CONFIRM www.zyxel.com
Zyxel USG FLEX 5.21 Command Injection ≈ Packet Storm MISC packetstormsecurity.com
Zyxel Remote Command Execution ≈ Packet Storm MISC packetstormsecurity.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Legacy QID Mappings

  • 730491 Zyxel Firewall OS Command Injection Vulnerability
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