CVE-2026-5426— KnowledgeDeliver deployments before February 24, 2026 use a static ASP.NET/IIS machineKey value
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I. Basic Information for CVE-2026-5426
Vulnerability Information
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Vulnerability Title
KnowledgeDeliver deployments before February 24, 2026 use a static ASP.NET/IIS machineKey value
Source: NVD (National Vulnerability Database)
Vulnerability 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
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用硬编码的密码学密钥
Source: NVD (National Vulnerability Database)
Vulnerability Title
Digital Knowledge KnowledgeDeliver 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Digital Knowledge KnowledgeDeliver是日本Digital Knowledge公司的一款在线学习管理系统。 Digital Knowledge KnowledgeDeliver 2026年2月24日之前版本存在安全漏洞，该漏洞源于硬编码ASP.NET/IIS machineKey值，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Digital Knowledge | KnowledgeDeliver | 0 ~ 20260224 | - |
II. Public POCs for CVE-2026-5426
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same weakness: CWE-321
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V. Comments for CVE-2026-5426
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