CVE-2020-29583 · netVigilance record NV21-0142

Zyxel Multiple Products Use of Hard-Coded Credentials

past due

What to do

Apply updates per vendor instructions.

CISA deadline 2022-05-03 · passed 4 years 4 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA

What happened

Zyxel firewalls (ATP, USG, VM) and AP Controllers (NXC2500 and NXC5500) contain a use of hard-coded credentials vulnerability in an undocumented account ("zyfwp") with an unchangeable password.

Who is affected

Zyxel Multiple Products. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.

Weakness class: CWE-522.

Timeline

2021-11-03
Added to CISA KEVExploitation in the wild confirmed by CISA
2022-05-03
CISA remediation deadlinepassed 4 years 4 months ago

Sources

NVD entry for CVE-2020-29583 nvd.nist.gov/vuln/detail/CVE-2020-29583
CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2020-29583