# CVE-2026-111375: FreeRDP 3.0.0 before 3.32.0 Out-of-Bounds Read via RAIL Window Title

> A malicious RDP server can cause a FreeRDP client crash or leak memory by sending non-NUL-terminated window titles in RAIL updates.

- **Severity:** Medium 6.3 (`CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 16 Oct 2026
- **Updated:** 21 Oct 2026
- **Also known as:** DEBIAN-CVE-2026-111375, GHSA-3rvr-qvx8-rj23, GHSA-gmj9-g5r3-8gvf, UBUNTU-CVE-2026-111375

## What is CVE-2026-111375?

CVE-2026-111375 is a medium-severity memory corruption vulnerability in Freerdp Freerdp, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

FreeRDP from 3.0.0 before 3.32.0 contains an out-of-bounds read vulnerability in the Windows RAIL client that allows malicious RDP servers to trigger heap over-reads by sending non-NUL-terminated window titles. Attackers can send a full-length WINDOW_ORDER_FIELD_TITLE update that wf_rail_window_common passes to SetWindowTextW, corrupting titles or crashing the client.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2026-111375?

It affects 1 product.


Products: Freerdp Freerdp.

## How do I fix CVE-2026-111375?

Upgrade to a fixed version.

## Is CVE-2026-111375 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111375 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-2026-111375 and fix it if it is affected.

What it is: CVE-2026-111375 is a medium-severity memory corruption vulnerability in Freerdp Freerdp, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111375 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-2026-111375/ (Markdown: https://insights.sbomify.com/CVE-2026-111375/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-111375
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-111375
- OSV: https://osv.dev/vulnerability/CVE-2026-111375

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-111375/
Summaries are generated and may contain mistakes; the official description above is the record.