CVE-2006-2560: Sitecom Wl-153

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

Sitecom WL-153 router firmware before 1.38 allows remote attackers to bypass access restrictions and conduct unauthorized operations via a UPnP request with a modified InternalClient parameter, which is not validated, as demonstrated by using AddPortMapping to forward arbitrary traffic.

Affected products

  • Sitecom Wl-153
  • Sitecom Wl-153 Router Firmware: up to and including 1.34; version 1.31 only

Published 2006-05-24. Last modified 2026-06-16.