CVE-2026-16853 IBM i is Affected By Multiple Vulnerabilities in NetServer
Medium 6.5
Published
Updated
Check this codebase for CVE-2026-16853 and fix it if it is affected.
What it is: CVE-2026-16853 is a medium-severity vulnerability in Ibm I, published on 13 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-16853 in the wild and no public exploit code.
Affected product: Ibm I. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-16853/ (Markdown: https://insights.sbomify.com/CVE-2026-16853/index.md)
A remote attacker can obtain sensitive information from IBM i systems via an out-of-bounds read vulnerability in NetServer.
- 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-2026-16853?
CVE-2026-16853 is a medium-severity vulnerability in Ibm I, published on 13 Aug 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 obtain sensitive information due to an out-of-bounds read.
Weakness: CWE-125
Which versions are affected by CVE-2026-16853?
It affects 1 product.
Products include Ibm I.
How do I fix CVE-2026-16853?
No fix has been published for CVE-2026-16853 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-16853 being exploited?
There is no known exploitation of CVE-2026-16853 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-ghg6-4m36-hf44.