CVE-2026-16827 Vulnerabilities in IBM AIX and PowerVM VIOS
Medium 5.9
Published
Updated
Check this codebase for CVE-2026-16827 and fix it if it is affected.
What it is: CVE-2026-16827 is a medium-severity vulnerability in Ibm Aix, published on 19 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-2026-16827 in the wild and no public exploit code.
Affected product: Ibm Aix. 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-2026-16827/ (Markdown: https://insights.sbomify.com/CVE-2026-16827/index.md)
A remote attacker can cause a denial of service in IBM AIX and PowerVM VIOS due to an uninitialized stack pointer.
- 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-2026-16827?
CVE-2026-16827 is a medium-severity vulnerability in Ibm Aix, published on 19 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to the use of an uninitialized stack pointer.
Weakness: CWE-908
Which versions are affected by CVE-2026-16827?
It affects 2 products.
How do I fix CVE-2026-16827?
No fix has been published for CVE-2026-16827 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-16827 being exploited?
There is no known exploitation of CVE-2026-16827 in the wild and no public exploit code.
Other vulnerabilities in Ibm Aix
Sources
Also known as GHSA-q92g-g9q5-r575.