CVE-2025-14055 Integer underflow in Secure NCP host
Low 2.4
Published
Updated
Check this codebase for CVE-2025-14055 and fix it if it is affected.
What it is: CVE-2025-14055 is a low-severity vulnerability in silabs.com Simplicity SDK, Gecko SDK, published on 20 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-14055 in the wild and no public exploit code.
Affected product: silabs.com Simplicity SDK, Gecko SDK. 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-2025-14055/ (Markdown: https://insights.sbomify.com/CVE-2025-14055/index.md)
An integer underflow in Silicon Labs Secure NCP host allows buffer overread via crafted packets, potentially exposing data or causing crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-14055?
CVE-2025-14055 is a low-severity vulnerability in silabs.com Simplicity SDK, Gecko SDK, published on 20 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An integer underflow vulnerability in Silicon Labs Secure NCP host implementation allows a buffer overread via a specially crafted packet.
Which versions are affected by CVE-2025-14055?
How do I fix CVE-2025-14055?
No fix has been published for CVE-2025-14055 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-14055 being exploited?
There is no known exploitation of CVE-2025-14055 in the wild and no public exploit code.
Sources
Also known as GHSA-2m3f-m6mg-cvqf.