CVE-2026-18509

IBM i is Affected By A Prvilege Escalation Vulnerability []

Published Aug 13, 2026 CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed

Description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to gain privilege escalation via the Navigator for i debugger. This could allow the attacker to access or manipulate sensitive data on the system, or create new profiles with elevated privileges on the IBM i system.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

IBM

affected

Version	Status	Constraints
`7.6`	affected	—
`7.5`	affected	—
`7.4`	affected	—
`7.3`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:ibm:i:7.3:::::::*
	cpe:2.3:a:ibm:i:7.4:::::::*
	cpe:2.3:a:ibm:i:7.5:::::::*
	cpe:2.3:a:ibm:i:7.6:::::::*

No data.

Vendor Product Versions

Ibm

Version	Status	Scheme	Platform
`7.6`	affected	generic	—
`7.5`	affected	generic	—
`7.4`	affected	generic	—
`7.3`	affected	generic	—

Remediation

Vendor Solution

IBM strongly recommends addressing the vulnerability now. Navigator IBM i Release5770-SS1 PTF Number(s)PTF Download Link(s)7.6SJ10887 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11126 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11125 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11124 7.3SJ11128 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11128 https://www.ibm.com/mysupport/s/fix-information IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.232% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://www.ibm.com/support/pages/node/7283279

History

Aug 14, 2026 4:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Aug 13, 2026 9:00 PM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to gain privilege escalation via the Navigator for i debugger. This could allow the attacker to access or manipulate sensitive data on the system, or create new profiles with elevated privileges on the IBM i system.
Title		IBM i is Affected By A Prvilege Escalation Vulnerability []
First Time appeared		Ibm Ibm i
Weaknesses		CWE-285
CPEs		cpe:2.3:a:ibm:i:7.3.0:::::::* cpe:2.3:a:ibm:i:7.3:::::::* cpe:2.3:a:ibm:i:7.4.0:::::::* cpe:2.3:a:ibm:i:7.4:::::::* cpe:2.3:a:ibm:i:7.5.0:::::::* cpe:2.3:a:ibm:i:7.5:::::::* cpe:2.3:a:ibm:i:7.6.0:::::::* cpe:2.3:a:ibm:i:7.6:::::::*
Vendors & Products		Ibm Ibm i
References		https://www.ibm.com/support/pages/node/7283279
Metrics		cvssV3_1 `{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N'}`