Is CVE-2022-30525 actively exploited?

CVE-2022-30525 has no public evidence of in-the-wild exploitation as of 2025-10-27.

What is the CVSS score for CVE-2022-30525?

CVE-2022-30525 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2022-30525?

Patch guidance is available from zyxel security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-30525.

Fix CVE-2022-30525 - CRITICAL zyxel usg flex 100w firmware

Q: Which products are affected by CVE-2022-30525?

16 products: zyxel usg flex 100w firmware, zyxel usg flex 200 firmware, zyxel usg flex 500 firmware, zyxel usg flex 700 firmware, zyxel vpn100 firmware, and 11 more.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-78 · OS Command Injection CWE-78 · OS Command Injection

Metadata

Primary Vendor: ZYXEL
Published: 5/12/2022
Last Modified: 10/27/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

zyxel : usg_flex_100w_firmwarezyxel : usg_flex_200_firmwarezyxel : usg_flex_500_firmwarezyxel : usg_flex_700_firmwarezyxel : vpn100_firmwarezyxel : vpn1000_firmwarezyxel : vpn300_firmwarezyxel : vpn50_firmwarezyxel : atp100_firmwarezyxel : atp100w_firmwarezyxel : atp200_firmwarezyxel : atp500_firmwarezyxel : atp700_firmwarezyxel : atp800_firmwarezyxel : usg_flex_50w_firmwarezyxel : usg20w-vpn_firmware

Remediation Guidance

Executive Summary

View on NIST NVD