IBM i is Affected By Multiple Vulnerabilities in Debug Server

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-18076
StatePUBLISHED
Assigneribm
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-04 17:16:55 UTC
Updated2026-09-10 16:17:08 UTC
DescriptionIBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to cause a denial of service due to a memory leak.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.002860000 probability, percentile 0.210140000 (date 2026-09-13)

Problem Types: CWE-401 | CWE-401 CWE-401 Missing Release of Memory after Effective Lifetime

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
3.1CNACVSS4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Ibm I 7.3 All All All
Operating System Ibm I 7.4 All All All
Operating System Ibm I 7.5 All All All
Operating System Ibm I 7.6 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA IBM I affected 7.6 Not specified
CNA IBM I affected 7.5 Not specified
CNA IBM I affected 7.4 Not specified
CNA IBM I affected 7.3 Not specified

References

ReferenceSourceLinkTags
www.ibm.com/support/pages/node/7285844 [email protected] www.ibm.com Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: IBM i Release5770-SS1 PTF Number(s)PTF Download Link(s)7.6SJ11305 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11305 7.5SJ11306 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11306 7.4SJ11307 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11307 7.3SJ11308 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11308 IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.

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