CVE-2026-33516
Critical
Description
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.
SeverityCritical
CVSS9.1
Exploit probability—
ProductNeutrinolabs Xrdp
PublishedApr 17, 2026
First seenApr 17, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- neutrinolabs xrdp0.10.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| neutrinolabs xrdp | v < 0.10.6 | 0.10.6 |
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