CVE-2026-18073 IBM i is Affected By Multiple Vulnerabilities in Debug Server
A local authenticated attacker can inject parameters into CL commands in IBM i, potentially leading to arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18073?
CVE-2026-18073 is a medium-severity command injection vulnerability in Ibm I, published on 4 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 authenticated attacker to inject parameters into a CL command due to improper neutralization of special elements.
Weakness: CWE-78
Which versions are affected by CVE-2026-18073?
It affects 1 product.
Products include Ibm I.
How do I fix CVE-2026-18073?
No fix has been published for CVE-2026-18073 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-2026-18073 being exploited?
There is no known exploitation of CVE-2026-18073 in the wild and no public exploit code.
Other vulnerabilities in Ibm I
- CVE-2026-96119 IBM i is Affected By An Improper Control of Code Generation Vulnerability in HTTP Server Administration GUI
- CVE-2026-16860 IBM i is Affected By Remote Code Execution Vulnerability []
- CVE-2026-17083 IBM i is Affected By Multiple Vulnerabilities in the Debug Server
- CVE-2026-17218 IBM i is Affected By Remote Code Execution Vulnerability in Line Printer Daemon []
- CVE-2026-17276 IBM i is Affected By Multiple Vulnerabilities in Navigator for i
Sources
Also known as GHSA-gq2q-7p9g-qvxj.