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Platform CVE-2026-5373

| EUVD-2026-19634 HIGH
Improper Privilege Management (CWE-269)
2026-04-07 runZero GHSA-jc2w-m6fm-mc3g
8.1
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.1 HIGH
AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

7
Re-analysis Queued
Apr 21, 2026 - 15:22 vuln.today
cvss_changed
Analysis Updated
Apr 16, 2026 - 06:05 EUVD-patch-fix
executive_summary
Re-analysis Queued
Apr 16, 2026 - 05:29 backfill_euvd_patch
patch_released
Patch available
Apr 16, 2026 - 05:29 EUVD
4.0.260202.0
EUVD ID Assigned
Apr 07, 2026 - 14:30 euvd
EUVD-2026-19634
Analysis Generated
Apr 07, 2026 - 14:30 vuln.today
CVE Published
Apr 07, 2026 - 14:10 nvd
HIGH 8.1

DescriptionCVE.org

An issue that allowed all-organization administrators to promote accounts to superuser status has been resolved. This is an instance of CWE-269: Improper Privilege Management, and has an estimated CVSS score of CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N (8.1 High). This issue was fixed in version 4.0.260202.0 of the runZero Platform.

AnalysisAI

Improper privilege management in runZero Platform allows organization administrators to escalate privileges to superuser status. Authenticated admin users with high privileges (PR:H) can exploit this network-accessible flaw (AV:N) with user interaction (UI:R) to gain unauthorized superuser access, potentially compromising confidentiality and integrity across organizational boundaries (scope changed to C). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate as organization administrator
Delivery
Access user management interface
Exploit
Trigger account promotion function
Execution
Execute superuser privilege escalation
Impact
Gain unauthorized administrative control

Vulnerability AssessmentAI

Exploitation Attacker must be an all-organization administrator in runZero Platform versions before 4.0.260202.0. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Real-world risk is moderate-to-high despite the 8.1 CVSS score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker who has compromised an organization administrator account through phishing or credential theft accesses the runZero Platform web interface. Exploiting the privilege management flaw with low complexity, the attacker navigates to administrative functions and successfully promotes their account (or creates a new account) to superuser status. …
Remediation Vendor-released patch: runZero Platform version 4.0.260202.0. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all runZero Platform instances in your environment and document current versions. …

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CVE-2026-5373 vulnerability details – vuln.today

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