CVE-2026-54538

CVE-2026-54538 affects xrdp up to version 0.10.6, where the server fails to validate the totalLength field in the RDP protocol control header. An unauthenticated attacker can send a crafted packet that makes the xrdp process enter an infinite, CPU‑bound loop, due to a pointer not advancing and by...

CVE-2026-54538 xrdp: Pre-auth infinite loop via totalLength=0 in TS_SHARECONTROLHEADER

xrdp is an open source RDP server. In versions 0.10.6 and prior, a n issue was discovered where the software fails to properly validate the totalLength field within the RDP protocol control header during packet reception. An unauthenticated remote attacker can exploit this vulnerability by sendin...