CVE-2022-30525

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.

Affected

Zyxel · USG FLEX 100(W) firmware · USG FLEX 200 firmware · USG FLEX 500 firmware · USG FLEX 700 firmware · ATP series firmware · VPN series firmware

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS

99.94% chance of exploitation in the next 30 days, 100th percentile

CISA KEV

added 2022-05-16

Nuclei

critical · CWE-78

Published

2022-05-12

Updated

2025-10-21

Proof-of-concept exploits (19)

• http://packetstormsecurity.com/files/167182/Zyxel-Firewall-ZTP-Unauthenticated-Command-In…
• http://packetstormsecurity.com/files/167372/Zyxel-USG-FLEX-5.21-Command-Injection.html
• http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalati…
• Chocapikk/CVE-2022-30525-Reverse-Shell3★ · 2022-05-19
• Fans0n-Fan/Awesome-IoT-exp1★ · 2022-05-19
• Henry4E36/CVE-2022-3052522★ · 2022-05-13
• M4fiaB0y/CVE-2022-305251★ · 2022-05-15
• ProngedFork/CVE-2022-305251★ · 2022-06-13
• YGoldking/CVE-2022-305253★ · 2022-05-16
• arajsingh-infosec/CVE-2022-30525_Exploit1★ · 2024-02-27
• furkanzengin/CVE-2022-305251★ · 2022-06-12
• iveresk/cve-2022-305253★ · 2022-05-24
• jbaines-r7/victorian_machinery30★ · 2022-05-12
• k0sf/CVE-2022-305253★ · 2022-05-16
• savior-only/CVE-2022-305254★ · 2022-05-14
• shuai06/CVE-2022-3052533★ · 2022-05-13
• superzerosec/CVE-2022-305251★ · 2022-05-17
• west9b/CVE-2022-3052512★ · 2022-05-28
• west9b/F5-BIG-IP-POC10★ · 2022-07-30

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2022/CVE-2022-30525.yaml

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/zyxel_ztp_rce.rb

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/50946

Exploit collections (1)

• CVE-2022-30525.yamlzan8in/afrog

Security advisories

• https://www.zyxel.com/support/Zyxel-security-advisory-for-OS-command-injection-vulnerabil…
• http://packetstormsecurity.com/files/167176/Zyxel-Remote-Command-Execution.html

References

• CVE Record
• NVD entry

Related

• CVE-2018-4407
• CVE-2020-16137
• CVE-2020-16138
• CVE-2020-16139
• CVE-2018-20463
• CVE-2021-41277