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URL: https://nvd.nist.gov/vuln/detail/CVE-2022-30525

⇱ NVD - CVE-2022-30525

  1. Vulnerabilities

CVE-2022-30525 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://packetstormsecurity.com/files/167176/Zyxel-Remote-Command-Execution.html CVE, Zyxel Corporation Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/167182/Zyxel-Firewall-ZTP-Unauthenticated-Command-Injection.html CVE, Zyxel Corporation Exploit  Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/167372/Zyxel-USG-FLEX-5.21-Command-Injection.html CVE, Zyxel Corporation Exploit  Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html CVE, Zyxel Corporation Exploit  Third Party Advisory 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-30525 CISA-ADP US Government Resource 
https://www.zyxel.com/support/Zyxel-security-advisory-for-OS-command-injection-vulnerability-of-firewalls.shtml CVE, Zyxel Corporation Vendor Advisory 

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability Name Date Added Due Date Required Action
Zyxel Multiple Firewalls OS Command Injection Vulnerability 05/16/2022 06/06/2022 Apply updates per vendor instructions.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') 👁 cwe source acceptance level
NIST   Zyxel Corporation  

Known Affected Software Configurations Switch to CPE 2.2

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Denotes Vulnerable Software
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Change History

14 change records found show changes

CVE Modified by CISA-ADP 6/17/2026 12:43:46 AM

Action Type Old Value New Value
Added SSVC 
{"timestamp":"2025-01-29T16:09:58.800835Z","id":"CVE-2022-30525","options":[{"exploitation":"active"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

CVE Modified by Zyxel Corporation 6/17/2026 12:43:46 AM

Action Type Old Value New Value
Added Affected 
[{"vendor":"Zyxel","product":"USG FLEX 100(W) firmware","versions":[{"version":"5.00 through 5.21 Patch 1","status":"affected"}]},{"vendor":"Zyxel","product":"USG FLEX 200 firmware","versions":[{"version":"5.00 through 5.21 Patch 1","status":"affected"}]},{"vendor":"Zyxel","product":"USG FLEX 500 firmware","versions":[{"version":"5.00 through 5.21 Patch 1","status":"affected"}]},{"vendor":"Zyxel","product":"USG FLEX 700 firmware","versions":[{"version":"5.00 through 5.21 Patch 1","status":"affected"}]},{"vendor":"Zyxel","product":"ATP series firmware","versions":[{"version":"5.10 through 5.21 Patch 1","status":"affected"}]},{"vendor":"Zyxel","product":"VPN series firmware","versions":[{"version":"4.60 through 5.21 Patch 1","status":"affected"}]},{"vendor":"Zyxel","product":"USG FLEX 50(W) firmware","versions":[{"version":"5.10 through 5.21 Patch 1","status":"affected"}]},{"vendor":"Zyxel","product":"USG 20(W)-VPN firmware","versions":[{"version":"5.10 through 5.21 Patch 1","status":"affected"}]}]

Modified Analysis by NIST 10/27/2025 1:04:31 PM

Action Type Old Value New Value
Added Reference Type 
CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-30525 Types: US Government Resource

CVE Modified by CISA-ADP 10/21/2025 8:18:05 PM

Action Type Old Value New Value
Added Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-30525

CVE Modified by CISA-ADP 10/21/2025 4:19:08 PM

Action Type Old Value New Value
Removed Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-30525

CVE Modified by CISA-ADP 10/21/2025 3:19:43 PM

Action Type Old Value New Value
Added Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-30525

Modified Analysis by NIST 3/13/2025 12:37:06 PM

Action Type Old Value New Value
Changed CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 from (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*


 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 from (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*
Changed CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 from (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*


 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 from (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*
Changed CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 from (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*


 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 from (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*
Changed CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 from (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*


 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 from (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*
Changed CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 from (including) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*


 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 from (including) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*
Changed CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 from (including) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*


 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 from (including) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*

CVE Modified by CVE 11/21/2024 2:02:52 AM

Action Type Old Value New Value
Added Reference 
http://packetstormsecurity.com/files/167176/Zyxel-Remote-Command-Execution.html
Added Reference 
http://packetstormsecurity.com/files/167182/Zyxel-Firewall-ZTP-Unauthenticated-Command-Injection.html
Added Reference 
http://packetstormsecurity.com/files/167372/Zyxel-USG-FLEX-5.21-Command-Injection.html
Added Reference 
http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html
Added Reference 
https://www.zyxel.com/support/Zyxel-security-advisory-for-OS-command-injection-vulnerability-of-firewalls.shtml

CVE Modified by Zyxel Corporation 5/14/2024 6:35:32 AM

Action Type Old Value New Value

Modified Analysis by NIST 10/19/2022 2:32:19 PM

Action Type Old Value New Value
Changed Reference Type 
http://packetstormsecurity.com/files/167372/Zyxel-USG-FLEX-5.21-Command-Injection.html No Types Assigned


 
http://packetstormsecurity.com/files/167372/Zyxel-USG-FLEX-5.21-Command-Injection.html Exploit, Third Party Advisory, VDB Entry
Changed Reference Type 
http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html No Types Assigned


 
http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html Exploit, Third Party Advisory

CVE Modified by Zyxel Corporation 8/31/2022 3:15:08 PM

Action Type Old Value New Value
Added Reference 
http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html [No Types Assigned]

CVE Modified by Zyxel Corporation 6/03/2022 2:15:09 PM

Action Type Old Value New Value
Added Reference 
http://packetstormsecurity.com/files/167372/Zyxel-USG-FLEX-5.21-Command-Injection.html [No Types Assigned]

Initial Analysis by NIST 5/23/2022 10:17:56 AM

Action Type Old Value New Value
Added CVSS V3.1 
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added CVSS V2 
NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Added CWE 
NIST CWE-78
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:usg20w-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg20w-vpn:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 up to (including) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:* versions from (including) 5.00 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:vpn1000_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:vpn1000:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:vpn100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:vpn100:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:vpn300_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:vpn300:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:zyxel:vpn50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.30
 OR
 cpe:2.3:h:zyxel:vpn50:-:*:*:*:*:*:*:*
Changed Reference Type 
http://packetstormsecurity.com/files/167176/Zyxel-Remote-Command-Execution.html No Types Assigned


 
http://packetstormsecurity.com/files/167176/Zyxel-Remote-Command-Execution.html Third Party Advisory, VDB Entry
Changed Reference Type 
http://packetstormsecurity.com/files/167182/Zyxel-Firewall-ZTP-Unauthenticated-Command-Injection.html No Types Assigned


 
http://packetstormsecurity.com/files/167182/Zyxel-Firewall-ZTP-Unauthenticated-Command-Injection.html Exploit, Third Party Advisory, VDB Entry
Changed Reference Type 
https://www.zyxel.com/support/Zyxel-security-advisory-for-OS-command-injection-vulnerability-of-firewalls.shtml No Types Assigned


 
https://www.zyxel.com/support/Zyxel-security-advisory-for-OS-command-injection-vulnerability-of-firewalls.shtml Vendor Advisory

CVE Modified by Zyxel Corporation 5/16/2022 12:15:08 PM

Action Type Old Value New Value
Added Reference 
http://packetstormsecurity.com/files/167176/Zyxel-Remote-Command-Execution.html [No Types Assigned]
Added Reference 
http://packetstormsecurity.com/files/167182/Zyxel-Firewall-ZTP-Unauthenticated-Command-Injection.html [No Types Assigned]

Quick Info

CVE Dictionary Entry:
CVE-2022-30525
NVD Published Date:
05/12/2022
NVD Last Modified:
06/17/2026
Source:
Zyxel Corporation