CVE-2026-55238

Not enough EPSS history yet.

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a vulnerability concerning the processing of RDP Confirm Active PDU, where during the capability negotiation phase, the parser did not perform sufficient length validation for specific capability sets. A remote, unauthenticated attacker could potentially exploit this flaw by sending a specially crafted RDP packet containing malformed capability data. Due to missing bounds checks, the xrdp process may perform out-of-bounds memory reads, which can result in the termination of the service (Denial of Service). However, since xrdp forks a new process for each connection by default, an out-of-bounds read causing a process crash is unlikely to bring down the entire xrdp service. This issue has been fixed in version 0.10.6.1.

• github.comhttps://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1
• github.comhttps://github.com/neutrinolabs/xrdp/security/advisories/GHSA-mg8j-x9rw-9xv3