---
id: CVE-2026-107674
title: IBM i is Affected by a Denial of Service in Digital Certificate Manager
summary: >-
  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 fro…
severity: medium
cvss: 5.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-667
vendor: IBM
product: i
affected:
  - i 7.6
  - i 7.5
  - i 7.4
  - i 7.3
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T18:08:44.708Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-107674'
references:
  - url: 'https://www.ibm.com/support/pages/node/7292225'
tags:
  - cve.org
ingestedAt: '2026-10-16T18:43:08.629Z'
---

## Overview

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.

## Affected

- `i 7.6`
- `i 7.5`
- `i 7.4`
- `i 7.3`

## Remediation

IBM strongly recommends addressing the vulnerability now.

IBM i Release5770-SS1 Option 34
PTF Number(s)PTF Download Link(s)7.6SJ11846 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11846 7.5SJ11845 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11845 7.4SJ11844 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11844 7.3SJ11843 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11843 



IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.