CVE-2026-114042 FreeRDP 3.32.0 Use-After-Free via drdynvc Virtual Channel PDU
High 7.1
Published
Updated
Check this codebase for CVE-2026-114042 and fix it if it is affected.
What it is: CVE-2026-114042 is a high-severity vulnerability in FreeRDP, published on 21 Oct 2026.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-114042 exists.
Affected product: FreeRDP. 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-2026-114042/ (Markdown: https://insights.sbomify.com/CVE-2026-114042/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-114042?
CVE-2026-114042 is a high-severity vulnerability in FreeRDP, published on 21 Oct 2026.
Official description
FreeRDP 3.32.0 contains a use-after-free vulnerability in the drdynvc channel that frees a pool-owned stream with the owned-stream deallocator when totalLength is smaller than the chunk size. A malicious RDP server can send a single well-formed Virtual Channel PDU to trigger the free and crash the client during teardown.
Weakness: CWE-416
Which versions are affected by CVE-2026-114042?
How do I fix CVE-2026-114042?
Upgrade to a fixed version.
Is CVE-2026-114042 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-114042 exists.
Sources
Also known as DEBIAN-CVE-2026-114042, GHSA-5xjc-c64q-m8r6, GHSA-72vv-4hwf-qhx6, UBUNTU-CVE-2026-114042.