Risk Letters

Exploited vulnerability

CVE-2024-40890

TLP:CLEAR

Zyxel DSL CPE OS Command Injection Vulnerability

Multiple Zyxel DSL CPE devices contain a post-authentication command injection vulnerability in the CGI program that could allow an authenticated attacker to execute OS commands via a crafted HTTP request.

Facts

  • Vendor: Zyxel
  • Product: DSL CPE Devices
  • CVSS: 8.8
  • EPSS (probability of exploitation within 30 days): 20.7 %
  • On CISA's Known Exploited Vulnerabilities list since: 11 February 2025
  • First known exploitation: 11 February 2025
  • CISA's deadline for US federal agencies: 4 March 2025
  • Weakness: CWE-78
  • First seen by Risk Letters: 11 February 2025

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD