CVE-2022-30525

highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.999 · 100 %ileexploit · weaponizedEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 16 exploits · weaponized

Likely / severe?

99.9% (100th) EPSS

CVSS 10 · high

Is it mine?

33 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

added 2022-05-16remediate by 2022-06-06

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-27

Zyxel Multiple Firewalls OS Command Injection Vulnerability

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

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9.8–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · security@zyxel.com.twexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-78USprimaryCWE-78US

exploits (16)

Public proof-of-concept and weaponised exploit code.

exploit/linux/http/zyxel_ztp_rceZyxel Firewall ZTP Unauthenticated Command Injectionweaponized · metasploit
EDB-50946Zyxel USG FLEX 5.21 - OS Command InjectionPoC · exploit_db
Chocapikk/CVE-2022-30525-Reverse-ShellSimple python script to exploit CVE-2022-30525 (FIXED): Zyxel Firewall Unauthenticated Remote Command InjectionPoC · poc_in_github
Henry4E36/CVE-2022-30525Zyxel 防火墙远程命令注入漏洞（CVE-2022-30525）PoC · poc_in_github
M4fiaB0y/CVE-2022-30525Zyxel Firewall Remote Command Injection Vulnerability (CVE-2022-30525) Batch Detection ScriptPoC · poc_in_github
ProngedFork/CVE-2022-30525CVE-2022-30525 POCPoC · poc_in_github

affected products (33)

Products and version ranges known to be affected.

Zyxel ATP series firmware≤ 5.10 through 5.21 Patch 1enisa_euvdEU
Zyxel USG 20(W)-VPN firmware≤ 5.10 through 5.21 Patch 1enisa_euvdEU
Zyxel USG FLEX 100(W) firmware≤ 5.00 through 5.21 Patch 1enisa_euvdEU
Zyxel USG FLEX 200 firmware≤ 5.00 through 5.21 Patch 1enisa_euvdEU
Zyxel USG FLEX 50(W) firmware≤ 5.10 through 5.21 Patch 1enisa_euvdEU
Zyxel USG FLEX 500 firmware≤ 5.00 through 5.21 Patch 1enisa_euvdEU
Zyxel USG FLEX 700 firmware≤ 5.00 through 5.21 Patch 1enisa_euvdEU
Zyxel VPN series Firmware≤ 4.60 through 5.21 Patch 1enisa_euvdEU
Zyxel Communications Corp. ATP≤ 5.30fstec_bduRU
Zyxel Communications Corp. USG FLEX 100≤ 5.30fstec_bduRU
Zyxel Communications Corp. USG FLEX 100W≤ 5.30fstec_bduRU
Zyxel Communications Corp. USG FLEX 200≤ 5.30fstec_bduRU
Zyxel Communications Corp. USG FLEX 50(W)≤ 5.30fstec_bduRU
Zyxel Communications Corp. USG FLEX 500≤ 5.30fstec_bduRU
Zyxel Communications Corp. USG FLEX 700≤ 5.30fstec_bduRU
Zyxel Communications Corp. USG USG20(W)-VPN≤ 5.30fstec_bduRU
Zyxel Communications Corp. VPN≤ 5.30fstec_bduRU
zyxel atp100 firmware5.10 → 5.30nvdUScpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:*
zyxel atp100w firmware5.10 → 5.30nvdUScpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:*
zyxel atp200 firmware5.10 → 5.30nvdUScpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:*

showing 20 of 33

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2022-05-12modified 2026-06-17

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references (21)

External citations — patches, advisories, analysis.

scry

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