CRITICALCVSS v3.1 9.8Actively exploited · CISA KEV since 2022-05-16Vulnerability

CVE-2022-30525

A command injection vulnerability in the CGI program of some Zyxel firewall versions could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.

Properties

Euvd product
USG FLEX 100(W) firmware, USG FLEX 200 firmware, USG FLEX 50(W) firmware, USG FLEX 700 firmware, ATP series firmware, VPN series Firmware, USG 20(W)-VPN firmware, USG FLEX 500 firmware
Vulnerability name
Zyxel Multiple Firewalls OS Command Injection Vulnerability
First seen
2025-10-21T23:15:39+00:00
Cvss score
9.8
Epss score
0.99944
Last seen
2026-10-19T12:00:27+00:00
Due date
2022-06-06
Euvd assigner
Zyxel
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2022-05-16T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2022-05-16
Score
9.8
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Zyxel
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
9.8

Related Entities (37 · showing 25)

AFFECTS_PRODUCT (32 · showing 20)

→[Product]cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:zyxel:vpn50:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:zyxel:vpn300_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:zyxel:usg20w-vpn_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:zyxel:vpn100_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:zyxel:vpn300:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:zyxel:vpn50_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:zyxel:vpn1000:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:zyxel:usg20w-vpn:-:*:*:*:*:*:*:*

MENTIONED_IN (2)

→[Campaign]Multi-Functional Linux Botnet "Evooo1Bot"
→[Campaign]Inside an IoT Botnet Framework With LLM-Assisted Development

DESCRIBES (1)

←[KEVEntry]Zyxel Multiple Firewalls OS Command Injection Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

INVOLVES (1)

←[Signal]kev_added · 2022-05-16

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CVE-2022-30525 (CVSS v3.1 9.8) — Ninja Signal Threat Intelligence | Ninja Signal