CVE-2026-16892IBM i is Affected By An Improper Authentication Vulnerability in Network Authentication Service []
- 5.4MediumCVSS base score
- 0.36%Exploitation in 30 daysEPSS · top 70% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to bypass security restrictions due to improper authentication during service-name matching.
Timeline
ID reserved
By ibm
- 42 days later
· 42 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ibmCNA (assigner) | 3.1 | Medium5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| NVDNVD · Analyzed | 3.1 | Medium5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.36% · top 70% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.
Affected products
What to do
Solution: IBM i Release5770-SS1 PTF Number(s)PTF Download Link(s)7.6SJ11089 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11089 7.5SJ11090 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11090 7.4SJ11091 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11091 7.3SJ11092 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11092 IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.
References
References1
- https://www.ibm.com/support/pages/node/7285843 (opens in a new tab)vendor-advisorypatch
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-71484 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-16892)Record last updated .