---
id: CVE-2026-6936
title: >-
  IBM i 7.6, 7.5, 7.4, and 7.3 s vulnerable to a denial-of-service attack due to
  uncontrolled recursion in the Integrated Language Environment (ILE) compiler
summary: >-
  IBM i 7.6, 7.5, 7.4, and 7.3 s vulnerable to a denial-of-service attack due to
  uncontrolled recursion in the Integrated Language Environment (ILE) compiler.
  An authenticated attacker could exploit this vulnerability by compiling
  speciall…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-674
vendor: ibm
product: i
affected:
  - 'i >= 7.3, <= 7.6'
published: '2026-05-27'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T20:10:00.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-6936'
references:
  - url: 'https://www.ibm.com/support/pages/node/7272908'
    label: psirt@us.ibm.com
tags:
  - nvd
epss: 0.0042
epssPercentile: 0.34728
ingestedAt: '2026-10-14T20:53:12.322Z'
---

## Overview

IBM i 7.6, 7.5, 7.4, and 7.3 s vulnerable to a denial-of-service attack due to uncontrolled recursion in the Integrated Language Environment (ILE) compiler. An authenticated attacker could exploit this vulnerability by compiling specially crafted source code containing a specific combination of statements.

## Affected

- `i >= 7.3, <= 7.6`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.