# CVE-2026-110829: FreeRDP 3.0.0 before 3.32.0 Null Pointer Dereference via rdpsnd Fragment

> A malicious RDP server can crash the FreeRDP client by sending a malformed audio channel packet, causing a denial of service.

- **Severity:** High 7.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 14 Oct 2026
- **Updated:** 15 Oct 2026
- **Also known as:** DEBIAN-CVE-2026-110829, GHSA-3mq5-xh88-9v62, GHSA-45cr-5r62-8qcj, UBUNTU-CVE-2026-110829

## What is CVE-2026-110829?

CVE-2026-110829 is a high-severity vulnerability in Freerdp Freerdp, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

FreeRDP versions from 3.0.0 before 3.32.0 contain a null pointer dereference in the rdpsnd channel when a fragment sets CHANNEL_FLAG_LAST without CHANNEL_FLAG_FIRST. A malicious RDP server can send a malformed rdpsnd PDU on a fresh channel to crash the client and cause denial of service.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2026-110829?

It affects 1 product.


Products: Freerdp Freerdp.

## How do I fix CVE-2026-110829?

Upgrade to a fixed version.

## Is CVE-2026-110829 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-110829 exists.

## Other vulnerabilities in Freerdp Freerdp

- [CVE-2021-37594](https://insights.sbomify.com/CVE-2021-37594/): Other in n/a (critical 9.8)
- [CVE-2021-37595](https://insights.sbomify.com/CVE-2021-37595/): Other in n/a (critical 9.8)
- [CVE-2026-67305](https://insights.sbomify.com/CVE-2026-67305/): FreeRDP Windows Client before 3.29.0 Heap Buffer Overflow via Cliprdr (critical 9.4)
- [CVE-2026-66402](https://insights.sbomify.com/CVE-2026-66402/): FreeRDP before 3.29.0 TLS Certificate Identity Validation Bypass (critical 9.3)
- [CVE-2026-67289](https://insights.sbomify.com/CVE-2026-67289/): FreeRDP before 3.29.0 HTTP Proxy Request Injection via Redirection (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-110829 and fix it if it is affected.

What it is: CVE-2026-110829 is a high-severity vulnerability in Freerdp Freerdp, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-110829 exists.

Affected product: Freerdp 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-2026-110829/ (Markdown: https://insights.sbomify.com/CVE-2026-110829/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-110829
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-110829
- OSV: https://osv.dev/vulnerability/CVE-2026-110829

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-110829/
Summaries are generated and may contain mistakes; the official description above is the record.