EPSS 0.01
Exploitation of KnowledgeDeliver via ViewState Deserialization Vulnerability
Written by: Takahiro Sugiyama, Peter Revelant, Mathew Potaczek Introduction In late 2025, Mandiant responded to a security incident involving a compromised web server running KnowledgeDeliver. KnowledgeDeliver is a Learning Management System (LMS) developed by Digital Knowledge commonly used in Japan. Mandiant identified a critical vulnerability that allowed unauthenticated Remote Code Execution (RCE). An unknown threat actor leveraged this access to inject malicious code into the LMS platform,…
CVE v události 1
| CVE | hodnocení | KEV | EPSS |
|---|---|---|---|
| CVE-2026-5426 | 9.1 3.1 · CISA-ADP | – | 0.01 |
Hodnocení z katalogů, všechna, se stupnicí CVSS a vydavatelem. Rozpad vektoru je na stránce CVE.