Digital Knowledge KnowledgeDeliver prior 20260224 ViewState machineKey hard-coded key

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

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). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 9.1
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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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
05/27/2026 +41 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: 05/27/2026 07:14
Changes: 04/16/2026 18:28 (56), 04/16/2026 21:54 (1), 05/27/2026 07:14 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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