IBM i 7.6-7.3 Local DoS via Improper FTP Auth Validation
CVE-2026-17262 Published on September 18, 2026

IBM i is Affected By Denial of Service and Security Restriction Bypass Vulnerabilities in FTP [, ]
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to cause a denial of service due to improper validation of FTP authentication commands.

Vendor Advisory NVD

Vulnerability Analysis

Attack Vector:
ADJACENT_NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
LOW
Availability Impact:
LOW

Weakness Type

What is a Shell injection Vulnerability?

The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

CVE-2026-17262 has been classified to as a Shell injection vulnerability or weakness.


Products Associated with CVE-2026-17262

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IBM I
 

Affected Versions

IBM i: