# CVE-2026-33516: xrdp is an open source RDP server. Versions through 0.10.5 contain an out-of-bounds read vulnerability during the RDP…

Source: https://junglewise.ai/threats/cve-2026-33516-xrdp-is-an-open-source-rdp-server-versions-through-0-10-5-contain  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-17  
License: CC BY 4.0 with a link back

CVE-2026-33516 · Severity: critical · CVSS 9.1 · Published 2026-04-17

xrdp is an open source RDP server. Versions through 0.10.5 contain an out-of-bounds read vulnerability during the RDP capability exchange phase. The issue occurs when memory is accessed before validating the remaining buffer length. A remote, unauthenticated attacker can trigger this vulnerability by sending a specially crafted Confirm Active PDU. Successful exploitation could lead to a denial of service (process crash) or potential disclosure of sensitive information from the process memory. This issue has been fixed in version 0.10.6.

Technologies: [Neutrinolabs Xrdp](https://junglewise.ai/threats/technologies/xrdp). Vendors: [Neutrinolabs](https://junglewise.ai/threats/vendors/neutrinolabs).

## Quick answers

**Is CVE-2026-33516 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-33516 being exploited in the wild.

**How severe is CVE-2026-33516?** Critical severity, with a CVSS score of 9.1, published 17 April 2026.

**Which products and versions are affected?** Neutrinolabs Xrdp. The advisory does not name versions.

**Is there a fix for CVE-2026-33516?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2026-33516?** Check whether you run Neutrinolabs Xrdp. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Neutrinolabs Xrdp

## Related threats

- [neutrinolabs xrdp out-of-bounds read in MCS data processing](https://junglewise.ai/threats/cve-2026-55639-neutrinolabs-xrdp-out-of-bounds-read-in-mcs-data-processing)
- [neutrinolabs xrdp improper authentication in Xvnc backend](https://junglewise.ai/threats/cve-2026-55626-neutrinolabs-xrdp-improper-authentication-in-xvnc-backend)
- [neutrinolabs xrdp out-of-bounds read in Client Control PDU processing](https://junglewise.ai/threats/cve-2026-55645-neutrinolabs-xrdp-out-of-bounds-read-in-client-control-pdu)
- [neutrinolabs xrdp buffer over-read in RDP Confirm Active PDU](https://junglewise.ai/threats/cve-2026-55238-neutrinolabs-xrdp-buffer-over-read-in-rdp-confirm-active-pdu)
- [neutrinolabs xrdp infinite loop denial of service](https://junglewise.ai/threats/cve-2026-54538-neutrinolabs-xrdp-infinite-loop-denial-of-service)