CVE-2026-115501: IBM i is Affected By A Buffer Overflow Vulnerability in QFileSvr.400 File System []

Published Nov 13, 2026
·
Updated

IBM i 7.3 7.4, 7.5, and 7.6 is vulnerable to a stack buffer overflow, caused by improper bounds checking in the QFileSvr.400 file system. By sending a command in the QFileSvr.400 file system, a local authenticated attacker could cause undefined behavior.

Affected Software

1 affected component
IBM IBM i=7.3, =7.4, =7.5, =7.6

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade IBM i to a version that resolves this vulnerability.

    Patch SJ12288
  2. Upgrade

    Upgrade IBM i to a version that resolves this vulnerability.

    Patch SJ12287
  3. Upgrade

    Upgrade IBM i to a version that resolves this vulnerability.

    Patch SJ12286
  4. Upgrade

    Upgrade IBM i to a version that resolves this vulnerability.

    Patch SJ12285

Event History

Nov 13, 2026
CVE Published
via MITRE·09:46 PM
Data Sourced
via MITRE·09:46 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·10:17 PM
DescriptionSeverityWeakness

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