CVE-2026-5426 | Digital Knowledge KnowledgeDeliver prior 20260224 ViewState machineKey hard-coded key (MNDT-2026-0009)

VDB-357945 · CVE-2026-5426 · MNDT-2026-0009 DIGITAL KNOWLEDGE KNOWLEDGEDELIVER PRIOR 20260224 VIEWSTATE MACHINEKEY HARD-CODED KEY HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.4 $0-$5k 4.98+ Summaryinfo A vulnerability was found in Digital Knowledge KnowledgeDeliver. It has been rated as problematic. Impacted is an unknown function of the component ViewState Handler. Performing a manipulation of the argument machineKey results in hard-coded key. This vulnerability is known as CVE-2026-5426. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised. Detailsinfo A vulnerability was found in Digital Knowledge KnowledgeDeliver. It has been classified as problematic. This affects an unknown function of the component ViewState Handler. The manipulation of the argument machineKey with an unknown input leads to a hard-coded key vulnerability. CWE is classifying the issue as CWE-321. The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is: 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 The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-5426 since 04/02/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1600.001 for this issue. Upgrading to version 20260224 eliminates this vulnerability. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-23271). Productinfo Type Knowledge Base Software Vendor Digital Knowledge Name KnowledgeDeliver CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.6 VulDB Meta Temp Score: 5.4 VulDB Base Score: 5.6 VulDB Temp Score: 5.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Hard-coded key CWE: CWE-321 / CWE-320 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: KnowledgeDeliver 20260224 Timelineinfo 04/02/2026 CVE reserved 04/16/2026 +14 days Advisory disclosed 04/16/2026 +0 days VulDB entry created 04/16/2026 +0 days VulDB entry last update Sourcesinfo Advisory: MNDT-2026-0009 Status: Confirmed CVE: CVE-2026-5426 (🔒) GCVE (CVE): GCVE-0-2026-5426 GCVE (VulDB): GCVE-100-357945 EUVD: 🔒 Entryinfo Created: 04/16/2026 18:28 Updated: 04/16/2026 21:54 Changes: 04/16/2026 18:28 (56), 04/16/2026 21:54 (1) Complete: 🔍 Cache ID: 99:08D:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸