CVE-2026-17276
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Privilege Escalation in IBM i Due to Improper Authorization

Publication date: 2026-08-12

Last updated on: 2026-08-12

Assigner: IBM Corporation

Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to escalate privileges due to improper authorization in the handling of high-authority threads.

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Meta Information

Published
2026-08-12
Last Modified
2026-08-12
Generated
2026-08-13
AI Q&A
2026-08-12
EPSS Evaluated
N/A
NVD
CVE-2026-17276
EUVD
EUVD-2026-57361

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
ibm ibm_i From 7.6 (inc)
ibm ibm_i From 7.5 (inc)
ibm ibm_i From 7.4 (inc)
ibm ibm_i From 7.3 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-269 The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

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Executive Summary

This vulnerability in IBM i allows a remote authenticated attacker to escalate their privileges. It occurs due to improper authorization when handling high-authority threads, meaning an attacker could gain higher access levels than intended.

Impact Analysis

If exploited, this vulnerability could allow attackers to perform unauthorized actions with elevated privileges. This might include accessing sensitive data, modifying system configurations, or disrupting operations on affected IBM i systems.

Mitigation Strategies

Apply IBM i PTFs or updates to address improper authorization in high-authority threads. Monitor IBM i security bulletins for patches and restrict remote authenticated access until fixes are applied.

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