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CVE-2026-84414— IBM i is Affected By An Incorrect Permission Assignment Vulnerability in Network Authentication Service []

Quick assessment

Affected
IBM i
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to change the ownership of arbitrary files due to improper validation of an attacker-controlled file path.

CVSS 7.8 · High
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I. Basic Information for CVE-2026-84414

Vulnerability Information

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Vulnerability Title
IBM i is Affected By An Incorrect Permission Assignment Vulnerability in Network Authentication Service []
Source: CVE Program / CVE List V5
Vulnerability Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to change the ownership of arbitrary files due to improper validation of an attacker-controlled file path.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键资源的不正确权限授予
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM i 7.6 cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-84414

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III. Intelligence Information for CVE-2026-84414

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Other References for CVE-2026-84414 (1)

Same Patch Batch · IBM · 2026-09-29 · 6 CVEs total

CVE-2026-84436 9.1 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-84421 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities
CVE-2026-84842 8.1 HIGH IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-84440 7.5 HIGH IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-84422 7.2 HIGH IBM Guardium Data Protection is affected by multiple vulnerabilities.

IV. Related Vulnerabilities

Same product: i
Same vendor: IBM
Same weakness: CWE-732

V. Comments for CVE-2026-84414

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