CVE-2026-16859: IBM i is Affected By Multiple Vulnerabilities in NetServer
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to obtain sensitive information due to an out-of-bounds read.
Other sources
IBM i could allow a remote attacker to obtain sensitive information due to an out-of-bounds read.
— IBM
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
IBM i 7.6to a version that resolves this vulnerability.Patch MJ10939 - Upgrade
Upgrade
IBM i 7.5to a version that resolves this vulnerability.Patch MJ10938 - Upgrade
Upgrade
IBM i 7.4to a version that resolves this vulnerability.Patch MJ10937 - Upgrade
Upgrade
IBM i 7.3to a version that resolves this vulnerability.Patch MJ10936
Event History
Frequently Asked Questions
What is the severity of CVE-2026-16859?
The severity of CVE-2026-16859 is classified as medium with a score of 5.3.
How do I fix CVE-2026-16859?
To fix CVE-2026-16859, ensure that you apply the latest updates and patches provided by IBM for IBM i.
What does CVE-2026-16859 exploit?
CVE-2026-16859 exploits an out-of-bounds read vulnerability that may allow remote attackers to access sensitive information.
Which versions of IBM i are affected by CVE-2026-16859?
CVE-2026-16859 affects IBM i versions 7.3, 7.4, 7.5, and 7.6.
What type of attack does CVE-2026-16859 enable?
CVE-2026-16859 enables remote attackers to obtain sensitive information through an out-of-bounds read.