CRITICAL CISA KEV

CVE-2020-29583

CVSS v3

9.8

CRITICAL

EPSS Score

94.4%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

Description

Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this account can be found in cleartext in the firmware. This account can be used by someone to login to the ssh server or web interface with admin privileges.

CISA Known Exploited Vulnerability

Date Added
11/3/2021
Patch Due Date
5/3/2022
Ransomware Use
Unknown

Technical details

Published
12/22/2020

Frequently asked questions

What is CVE-2020-29583?

Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this account can be found in cleartext in the firmware. This account can be used by someone to login to the ssh server or web interface with admin privileges.

Is CVE-2020-29583 actively exploited?

Yes. CVE-2020-29583 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 5/3/2022.

What is the CVSS score for CVE-2020-29583?

CVE-2020-29583 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2020-29583 affecting your environment?

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