CVE-2020-17408: Nec Expresscluster X

High severity, CVSS 7.5. EPSS: 69.3% chance of exploitation in the next 30 days.

This vulnerability allows remote attackers to disclose sensitive information on affected installations of NEC ExpressCluster 4.1. Authentication is not required to exploit this vulnerability. The specific flaw exists within the clpwebmc executable. Due to the improper restriction of XML External Entity (XXE) references, a specially-crafted document specifying a URI causes the XML parser to access the URI and embed the contents back into the XML document for further processing. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM. Was ZDI-CAN-10801.

Affected products

• Nec Expresscluster X: version 4.1 only; version 4.2 only

Published 2020-09-10. Last modified 2026-06-17.