Buffer overflow in Neutrinolabs Xrdp
CVE-2026-44178
xrdp is an open source RDP server. Versions 0.10.6 and prior contain a heap-based buffer overflow vulnerability within the virtual channel forwarding mechanism. When forwarding data from a remote client to the internal channel server, the xrdp process utilizes a fixed-size buffer without adequate bounds checking on the incoming payload. An authenticated remote attacker can exploit this flaw by sending a specially crafted virtual channel message that exceeds the buffer capacity, leading to heap memory corruption. This may result in a denial of service or the execution of arbitrary code with the privileges of the xrdp process. This issue has been fixed in version 0.10.6.1.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.009 · change: +0.004
Affected products
- Neutrinolabs Xrdp — versions < 0.10.6.1
Weakness classification (CWE)
References
- github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1 (Release Notes)
- github.com/neutrinolabs/xrdp/security/advisories/GHSA-hh7r-2rmq-q4g4 (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-44178?
- CVE-2026-44178 is a high-severity vulnerability in Neutrinolabs Xrdp, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-07-20.
- How severe is CVE-2026-44178?
- High severity. CVSS v3 base score is 8.8 out of 10.