CVE-2026-18151
IBM i is Affected By Multiple Vulnerabilities in Navigator for i and Digital Certificate Manager for i.
- 4.2MediumCVSS base score
- 0.21%Exploitation in 30 daysEPSS · top 88% 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 obtain sensitive information due to a race condition during the WebSocket handshake process.
Timeline
ID reserved
By ibm
- 48 days later
· 48 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 | Medium4.2 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N |
| NVDNVD · Awaiting Analysis | 3.1 | Medium4.2 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.21% · top 88% of all CVEs (11 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 4.2.
Affected products
What to do
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.
References
References1
- https://www.ibm.com/support/pages/node/7286974 (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-2026-77765 (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-2026-18151)Record last updated .