PULSE
ES
FEED
ransomemperador reclama a MPI LTDA · BR · Otherransomspacebears reclama a Alma Center Servizi Medicali S.r.l. · IT · Healthcareransomspacebears reclama a Holistic Health Group, Inc. (d/b/a Suncrafted) · US · Healthcareransomn0n reclama a Company #69 · Not Foundransomiah6477 reclama a alera · Professional Servicesransomn0n reclama a Company #68 · US · Not Foundransomn0n reclama a Company #67 · NL · Not Foundransomn0n reclama a Company #66 · Not Foundransomn0n reclama a Interior Technologies · Technologyransomeclipse reclama a Taiwan Otsuka Pharmaceutical · TW · Healthcareransomeclipse reclama a japantimes.co.jp · JP · Otherransomakira reclama a FOODMatch · Agriculture and Food Productionransomakira reclama a Shediac Lobster Shop · CA · Retail & E-Commerceransomakira reclama a Torns Enterprises · Not Foundransomemperador reclama a MPI LTDA · BR · Otherransomspacebears reclama a Alma Center Servizi Medicali S.r.l. · IT · Healthcareransomspacebears reclama a Holistic Health Group, Inc. (d/b/a Suncrafted) · US · Healthcareransomn0n reclama a Company #69 · Not Foundransomiah6477 reclama a alera · Professional Servicesransomn0n reclama a Company #68 · US · Not Foundransomn0n reclama a Company #67 · NL · Not Foundransomn0n reclama a Company #66 · Not Foundransomn0n reclama a Interior Technologies · Technologyransomeclipse reclama a Taiwan Otsuka Pharmaceutical · TW · Healthcareransomeclipse reclama a japantimes.co.jp · JP · Otherransomakira reclama a FOODMatch · Agriculture and Food Productionransomakira reclama a Shediac Lobster Shop · CA · Retail & E-Commerceransomakira reclama a Torns Enterprises · Not Found
← All CVEs
CVE Watch—

CVE-2020-29583

Zyxel Multiple Products Use of Hard-Coded Credentials Vulnerability

CVSS

—

No CVSS

EPSS

90.2%

p100

KEV

YES

Nov 3, 2021

Exploit Today

80

0-100

Published: — · Last modified: —

EPSS · 30d
90.2%EPSS · 30 days90.2%
2026-09-162026-10-14
KEV catalog record

Product

Zyxel / Multiple Products

Vulnerability

Zyxel Multiple Products Use of Hard-Coded Credentials Vulnerability

Added to KEV

Nov 3, 2021

Remediate by

May 3, 2022

Known ransomware use

No

Summary description

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.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2020-29583

Related CVEs

No related CVEs by CWE or product.