CVE-2026-3290 Timing limitations of the HRNG in RS9116 when power save mode is enabled results in predictable values
High 7.4
Published
Updated
Check this codebase for CVE-2026-3290 and fix it if it is affected.
What it is: CVE-2026-3290 is a high-severity vulnerability in Silicon Labs RS9116 SDK, published on 14 May 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-3290 in the wild and no public exploit code.
Affected product: Silicon Labs RS9116 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-2026-3290/ (Markdown: https://insights.sbomify.com/CVE-2026-3290/index.md)
Predictable random values in the RS9116 HRNG during power save mode allow attackers to bypass security mechanisms relying on entropy.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-3290?
CVE-2026-3290 is a high-severity vulnerability in Silicon Labs RS9116 SDK, published on 14 May 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Timing limitations of the HRNG in RS9116 when power save mode is enabled results in predictable values
Weakness: CWE-332
Which versions are affected by CVE-2026-3290?
How do I fix CVE-2026-3290?
No fix has been published for CVE-2026-3290 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-3290 being exploited?
There is no known exploitation of CVE-2026-3290 in the wild and no public exploit code.
Sources
Also known as GHSA-rjvv-82rg-ppqh.