CVE-2026-44978

Açıklama (NVD)

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a heap out-of-bounds read vulnerability within the FIPS-specific receive paths. This vulnerability does not affect the default configuration of xrdp. The vulnerability is only exploitable when the security layer is set to security_layer=negotiate or security_layer=rdp, and the crypto level is changed to crypt_level=fips in xrdp.ini. In this specific non-default mode, the server fails to validate the FIPS padding length field, leading to a pointer underflow and a subsequent negative length calculation. An unauthenticated remote attacker can exploit this by sending a crafted FIPS-protected PDU, causing a heap out-of-bounds read that results in a process crash and denial of service (DoS). 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.

Yayın: 20.07.2026 · Son değişiklik: 24.10.2026 · Zayıflık: CWE-20, CWE-125

CVSS 3.1 metrikleri

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Hesaplanan temel puan: 5.3. CVSS hesaplayıcıda incele

Referanslar

• https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1
• https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-9cg5-f7m7-ppvj