IBM i is Affected By Multiple Vulnerabilities in the Debug Server
Summary
| CVE | CVE-2026-17271 |
|---|---|
| State | PUBLISHED |
| Assigner | ibm |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-12 18:17:26 UTC |
| Updated | 2026-08-13 16:29:16 UTC |
| Description | IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to improper validation of input size. |
Risk And Classification
Primary CVSS: v3.1 7.5 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.003860000 probability, percentile 0.316500000 (date 2026-08-13)
Problem Types: CWE-770 | CWE-770 CWE-770 Allocation of Resources Without Limits or Throttling
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | CNA | CVSS | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.ibm.com/support/pages/node/7283276 | [email protected] | www.ibm.com | 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 strongly recommends addressing the vulnerability now. IBM i Release5770-SS1 PTF Number(s)PTF Download Link(s)7.6SJ10899 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10899 7.5SJ10903 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10903 7.4SJ10915 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10915 7.3SJ10916 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10916 IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.