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Vulnerability record · CVE-2022-23478 · published 9 December 2022

CVE-2022-23478: Neutrinolabs xrdp out-of-bounds write vulnerability

NNeutrinolabs · Xrdp

xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop Protocol (RDP). xrdp < v0.9.21 contain a Out of Bound Write in xrdp_mm_trans_process_drdynvc_channel_open() function. There are no known workarounds for this issue. Users are advised to upgrade.

9.8 CVSS 3.1 Critical EPSS 0.84% · top 43.7% CWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score
0.84%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop Protocol (RDP). xrdp < v0.9.21 contain a Out of Bound Write in xrdp_mm_trans_process_drdynvc_channel_open() function. There are no known workarounds for this issue. Users are advised to upgrade.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-2f49-wwpm-78pj Third Party Advisory
https://www.debian.org/security/2023/dsa-5502 Third Party Advisory
https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-2f49-wwpm-78pj Third Party Advisory
https://www.debian.org/security/2023/dsa-5502 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2022-23478), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.