CVE-2025-46806 Misaligned Memory Accesses in `is_openvpn_protocol()`
Medium 6.9
Published
Updated
Check this codebase for CVE-2025-46806 and fix it if it is affected.
What it is: CVE-2025-46806 is a medium-severity vulnerability in https://github.com/yrutschle/sslh/releases/tag/v2.2.4 sslh, published on 2 Jun 2025.
Exploitation: There is no known exploitation of CVE-2025-46806 in the wild and no public exploit code.
Affected product: https://github.com/yrutschle/sslh/releases/tag/v2.2.4 sslh. 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-2025-46806/ (Markdown: https://insights.sbomify.com/CVE-2025-46806/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2025-46806?
CVE-2025-46806 is a medium-severity vulnerability in https://github.com/yrutschle/sslh/releases/tag/v2.2.4 sslh, published on 2 Jun 2025.
Official description
A Use of Out-of-range Pointer Offset vulnerability in sslh leads to denial of service on some architectures.This issue affects sslh before 2.2.4.
Weakness: CWE-823
Which versions are affected by CVE-2025-46806?
How do I fix CVE-2025-46806?
Upgrade to a fixed version.
Is CVE-2025-46806 being exploited?
There is no known exploitation of CVE-2025-46806 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2025-46806, GHSA-9pc8-3wwf-wg5j, UBUNTU-CVE-2025-46806.