VULNERABILITY INTELLIGENCE

CVE-2023-33778

CVSS score9.8 CRITICAL
EPSS probability0.59%
CISA KEVNot currently listed
Published2023-06-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Draytek Vigor Routers firmware versions below 3.9.6/4.2.4, Access Points firmware versions below v1.4.0, Switches firmware versions below 2.6.7, and Myvigor firmware versions below 2.3.2 were discovered to use hardcoded encryption keys which allows attackers to bind any affected device to their own account. Attackers are then able to create WCF and DrayDDNS licenses and synchronize them from the website.

Weakness classification

  • nvd@nist.gov: CWE-798
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-798

Primary references