PT-2026-33507 · Xrdp · Xrdp

Exploitintel · Published 2026-04-17 · Updated 2026-05-19 · CVE-2026-33689

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions xrdp versions prior to 0.10.6

Description An out-of-bounds read exists in the pre-authentication RDP message parsing logic. A remote, unauthenticated attacker can trigger this flaw by sending a specially crafted sequence of packets during the initial connection phase. The issue stems from insufficient validation of input buffer lengths before processing dynamic channel communication. This can result in a denial-of-service condition via a process crash or the potential disclosure of sensitive information from the service memory space.

Recommendations Update to version 0.10.6.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2026-06991

CVE-2026-33689

OPENSUSE-SU-2026:10816-1

Affected Products

Xrdp

References · 21

• https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-92mr-6wpp-27jj · Vendor Advisory
• https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-33689 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33689 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-33689 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-33689 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-33689 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-33689 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-06991 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10816-1 · Vendor Advisory
• https://altsp.su/obnovleniya-bezopasnosti · Note
• https://suse.com/security/cve/CVE-2024-39917 · Note
• https://suse.com/security/cve/CVE-2026-35512 · Note
• https://suse.com/security/cve/CVE-2026-33689 · Note
• https://twitter.com/infoflowcloud/status/2045469467048661398 · Twitter Post