CVE-2026-5426

KnowledgeDeliver deployments before February 24, 2026 use a static ASP.NET/IIS machineKey value

CVSS 9.1 CRITICALEPSS 1.0%CWE-321 CWE-502

Hard-coded ASP.NET/IIS machineKey value in Digital Knowledge KnowledgeDeliver deployments prior to February 24, 2026 allows adversaries to circumvent ViewState validation mechanisms and achieve remote code execution via malicious ViewState deserialization attacks

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Produtos afetados

Digital Knowledge · KnowledgeDeliver

PoCs públicas encontradas — 1

githubgithub.com/HORKimhab/CVE-2026-5426★ 0

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Referências

https://cloud.google.com/blog/topics/threat-intelligence/knowledgedeliver-viewstate-deserialization-vulnerability https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0009.md https://www.digital-knowledge.co.jp/product/kd/