CVE-2026-17057 IBM i is Affected By Denial of Service Vulnerabilities in NFS [, ]

Medium 6.5 Published Updated

Remote attackers can cause denial of service and compromise data integrity in IBM i due to missing authentication for critical NFS functions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-17057?

CVE-2026-17057 is a medium-severity missing authorization vulnerability in Ibm I, published on 4 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service and affect data integrity due to missing authentication for critical functions.

Weakness: CWE-306

Which versions are affected by CVE-2026-17057?

It affects 1 product.

Products include Ibm I.

How do I fix CVE-2026-17057?

No fix has been published for CVE-2026-17057 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-17057 being exploited?

There is no known exploitation of CVE-2026-17057 in the wild and no public exploit code.

All Ibm I vulnerabilities

Sources

Also known as GHSA-48hc-r2hp-8cx3.

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