CVE-2022-30525

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.

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

• 9.8CVSS 3.1, Criticalfrom the CNA (Zyxel)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What to do

• Apply updates per vendor instructions.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Timeline

1. 12 May 2022 Published
2. 16 May 2022 CVE-2022-30525 added to CISA KEV
3. 16 May 2022 Added to the CISA KEV catalogue

Weakness

• CWE-78

References

• www.zyxel.comx_refsource_CONFIRM
• packetstormsecurity.comx_refsource_MISC
• packetstormsecurity.comx_refsource_MISC
• packetstormsecurity.comx_refsource_MISC
• packetstormsecurity.comx_refsource_MISC