Heap-based buffer overflow in xrdp - CVE-2026-32624
Published: April 17, 2026
Vulnerability identifier: #VU126465
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-32624
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 attacker to cause a denial of service or modify memory.
The vulnerability exists due to heap-based buffer overflow in logon processing when handling a crafted excessively long username and domain name. A remote attacker can send a crafted excessively long username and domain name to cause a denial of service or modify memory.
Only systems where the domain_user_separator setting is configured in xrdp.ini are vulnerable.
How to mitigate CVE-2026-32624
Install security update from vendor's website.