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IBM i EUVD-2026-26440

| CVE-2026-2311 MEDIUM
Improper Access Control (CWE-284)
2026-04-30 ibm
6.4
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Analysis Generated
Apr 30, 2026 - 22:15 vuln.today
EUVD ID Assigned
Apr 30, 2026 - 22:00 euvd
EUVD-2026-26440
Analysis Generated
Apr 30, 2026 - 22:00 vuln.today
Patch released
Apr 30, 2026 - 22:00 nvd
Patch available
CVE Published
Apr 30, 2026 - 21:45 nvd
MEDIUM 6.4

DescriptionNVD

IBM i 7.6, 7.5, 7.4, 7.3, and 7.2 s vulnerable to privilege escalation caused by an invalid IBM i Web Administration GUI authorization check.  A malicious actor could cause user-controlled code to run with administrator privilege.

AnalysisAI

IBM i 7.2-7.6 contains an invalid authorization check in the Web Administration GUI that allows authenticated high-privilege users with administrator access to trigger privilege escalation, enabling user-controlled code execution with administrator privileges. The vulnerability requires high privileges and user interaction (CVSS:H for confidentiality, integrity, and availability), but is not currently listed in CISA's Known Exploited Vulnerabilities catalog, and no public exploit code has been identified as of the analysis date.

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EUVD-2026-26440 vulnerability details – vuln.today

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