CVE Watch20 jul 2026

CVE-2026-55639

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a vulnerability concerning the parsing of Client Security Data within t

CVSS

5.3

Medio

EPSS

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KEV

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Exploit Today

0-100

Publicado: 20 jul 2026 · Última mod.: 20 jul 2026 · CWE-125

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a vulnerability concerning the parsing of Client Security Data within the Client MCS Connect Initial PDU with GCC Conference Create Request during the connection sequence. During the initial capability and security negotiation phase, the parser fails to perform sufficient length validation for the incoming data block. A remote, unauthenticated attacker could potentially exploit this flaw by sending a specially crafted RDP packet containing malformed data. Due to missing bounds checks, the xrdp process may read a small number of bytes beyond the declared data block boundary, potentially disclosing process memory contents that could be combined with other vulnerabilities. This issue has been fixed in version 0.10.6.1.

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