CVE-2026-17262 IBM i is Affected By Denial of Service and Security Restriction Bypass Vulnerabilities in FTP [, ]
A local attacker can cause a denial of service and bypass security restrictions in IBM i FTP due to improper validation of authentication commands.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-17262?
CVE-2026-17262 is a medium-severity command injection vulnerability in IBM i, published on 18 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-78
Which versions are affected by CVE-2026-17262?
How do I fix CVE-2026-17262?
No fix has been published for CVE-2026-17262 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-17262 being exploited?
There is no known exploitation of CVE-2026-17262 in the wild and no public exploit code.
Sources
Also known as GHSA-mr8w-j3pv-4wm8.