CVE-2026-18251

IBM i is Affected By Multiple Vulnerabilities in Navigator for i and Digital Certificate Manager for i.

Published Sep 14, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to obtain sensitive information due to improper validation of the WebSocket origin.

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	—

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. IBM i Release5770-SS1 Option 3 PTF Number(s)PTF Download Link(s)7.6SJ11196 SJ11337 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11196 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11337 7.5SJ11197 SJ11336 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11197 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11336 7.4SJ11200 SJ11335 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11200 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11335 7.3SJ11187 SJ11394 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11187 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11394 IBM i Release5770-SS1 Option 34 PTF Number(s)PTF Download Link(s)7.6SJ11377 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11377 7.5SJ11376 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11376 7.4SJ11375 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11375 7.3SJ11374 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11374 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 Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.185% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://www.ibm.com/support/pages/node/7286974

History

Sep 14, 2026 9:30 PM Scoring metrics updated View changes

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

Sep 14, 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 remote attacker to obtain sensitive information due to improper validation of the WebSocket origin.
Title		IBM i is Affected By Multiple Vulnerabilities in Navigator for i and Digital Certificate Manager for i.
First Time appeared		Ibm Ibm i
Weaknesses		CWE-1385
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/7286974
Metrics		cvssV3_1 `{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}`