CVE-2026-109576 HMS Networks PEAK-System PCAN Windows drivers Out-of-bounds Write
Medium 6.8
Published
Updated
Check this codebase for CVE-2026-109576 and fix it if it is affected.
What it is: CVE-2026-109576 is a medium-severity vulnerability in HMS Networks PCAN Windows CAN device drivers, published on 20 Oct 2026.
Exploitation: There is no known exploitation of CVE-2026-109576 in the wild and no public exploit code.
Affected product: HMS Networks PCAN Windows CAN device drivers. 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-2026-109576/ (Markdown: https://insights.sbomify.com/CVE-2026-109576/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-109576?
CVE-2026-109576 is a medium-severity vulnerability in HMS Networks PCAN Windows CAN device drivers, published on 20 Oct 2026.
Official description
The parser in PEAK-System PCAN driver correctly detected the malformed record, but the loop iterating the record list advanced its processed-bytes counter even when a record had been rejected as invalid.
Weakness: CWE-787
Which versions are affected by CVE-2026-109576?
How do I fix CVE-2026-109576?
No fix has been published for CVE-2026-109576 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-109576 being exploited?
There is no known exploitation of CVE-2026-109576 in the wild and no public exploit code.
Sources
Also known as GHSA-5m25-2x5h-hg85.