CVE-2022-30525

CRITICALCISA KEV

9.8

Description

A 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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published5/12/2022

Last Modified10/27/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorZyxel

ProductMultiple Firewalls

Vulnerability NameZyxel Multiple Firewalls OS Command Injection Vulnerability

KEV Date Added2022-05-16

Remediation Due Date2022-06-06

Ransomware UseUnknown

Affected Products

zyxel:atp100zyxel:atp100_firmwarezyxel:atp100wzyxel:atp100w_firmwarezyxel:atp200zyxel:atp200_firmwarezyxel:atp500zyxel:atp500_firmwarezyxel:atp700zyxel:atp700_firmwarezyxel:atp800zyxel:atp800_firmwarezyxel:usg20w-vpnzyxel:usg20w-vpn_firmwarezyxel:usg_flex_100wzyxel:usg_flex_100w_firmwarezyxel:usg_flex_200zyxel:usg_flex_200_firmwarezyxel:usg_flex_500zyxel:usg_flex_500_firmwarezyxel:usg_flex_50wzyxel:usg_flex_50w_firmwarezyxel:usg_flex_700zyxel:usg_flex_700_firmwarezyxel:vpn100zyxel:vpn1000zyxel:vpn1000_firmwarezyxel:vpn100_firmwarezyxel:vpn300zyxel:vpn300_firmwarezyxel:vpn50zyxel:vpn50_firmware

Weaknesses (CWE)

CWE-78CWE-78

References

http://packetstormsecurity.com/files/167176/Zyxel-Remote-Command-Execution.html(security@zyxel.com.tw)

http://packetstormsecurity.com/files/167182/Zyxel-Firewall-ZTP-Unauthenticated-Command-Injection.html(security@zyxel.com.tw)

http://packetstormsecurity.com/files/167372/Zyxel-USG-FLEX-5.21-Command-Injection.html(security@zyxel.com.tw)

http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html(security@zyxel.com.tw)

https://www.zyxel.com/support/Zyxel-security-advisory-for-OS-command-injection-vulnerability-of-firewalls.shtml(security@zyxel.com.tw)

http://packetstormsecurity.com/files/167176/Zyxel-Remote-Command-Execution.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/167182/Zyxel-Firewall-ZTP-Unauthenticated-Command-Injection.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/167372/Zyxel-USG-FLEX-5.21-Command-Injection.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html(af854a3a-2127-422b-91ae-364da2661108)

https://www.zyxel.com/support/Zyxel-security-advisory-for-OS-command-injection-vulnerability-of-firewalls.shtml(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-30525(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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