VULNERABILITY INTELLIGENCE
CVE-2026-5426
CVSS score7.5 HIGH
EPSS probability1.01%
CISA KEVNot currently listed
Published2026-04-16
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
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
Weakness classification
- CWE-321: Use of Hard-coded Cryptographic Key
- CWE-502: Deserialization of Untrusted Data