IBM i 7.3, 7.4, 7.5, and 7.6 is vulnerable to a denial of service to Digital Certificate Manager (DCM) for System TLS using applications attempting to create secure network connections. A bad actor could use this to prevent a service from starting or cause it to fallback to non-secure connections.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://www.ibm.com/support/pages/node/7292225 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 5
- Cpes+4 CPE criteria (now 4)NVD modified 2026-10-23 16:05
- StatusPublished → AnalyzedNVD modified 2026-10-23 16:05
- CVSS5.1 (v3.1, CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H) → 4.4 (v3.1, CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)NVD modified 2026-10-23 16:05
- StatusUndergoing Analysis → PublishedNVD modified 2026-10-19 14:55
- First seenCVSS 5.1NVD modified 2026-10-19 15:16
Affected (CPE criteria) 4
cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*
References 1
- https://www.ibm.com/support/pages/node/7292225 Vendor Advisory