Heap-based buffer overflow in xrdp - CVE-2026-44178
Published: July 2, 2026
Vulnerability identifier: #VU136786
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-44178
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: neutrinolabs
Affected software:
xrdp
xrdp
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code or cause a denial of service.
The vulnerability exists due to heap-based buffer overflow in the virtual channel forwarding mechanism when forwarding data from a remote client to the internal channel server. A remote user can send a specially crafted virtual channel message that exceeds the buffer capacity to execute arbitrary code or cause a denial of service.
How to mitigate CVE-2026-44178
Install security update from vendor's website.