CVE catalog
CVE-2026-33689
xrdp is an open source RDP server. Versions through 0.10.5 have an out-of-bounds read vulnerability in the pre-authentication RDP message parsing logic. A remote, unauthenticated attacker can trigger
- Severity
- High · CVSS 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.48% · Oct 25, 2026
xrdp is an open source RDP server. Versions through 0.10.5 have an out-of-bounds read vulnerability 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. This vulnerability results from insufficient validation of input buffer lengths before processing dynamic channel communication. Successful exploitation can lead to a denial-of-service (DoS) condition via a process crash or potential disclosure of sensitive information from the service's memory space. This issue has been fixed in version 0.10.6.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | xrdp | sid | 0.10.6.1-3 | fixed |
| Debian | xrdp | forky | 0.10.6.1-3 | fixed |
| Debian | xrdp | trixie | 0.10.1-3.1+deb13u2 | fixed |
| Debian | xrdp | trixie-security | 0.10.1-3.1+deb13u2 | fixed |
| Debian | xrdp | bookworm | 0.9.21.1-1+deb12u2 | vulnerable |
| Debian | xrdp | bookworm-security | 0.9.21.1-1+deb12u3 | fixed |
| Cpe | xrdp | Not reported | Not reported | vulnerable |
| Cpe | xrdp | Not reported | 0.10.6 | fixed |
| Cpe | xrdp | Not reported | 0.10.6 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | xrdp | source | sid | 0.10.6-1 | not yet assigned | Not reported | [1134339] |
| Debian | xrdp | source | forky | 0.10.6-1 | not yet assigned | Not reported | [1134339] |
| Debian | xrdp | source | trixie | 0.10.1-3.1+deb13u2 | not yet assigned | Not reported | [1134339] |
| Debian | xrdp | source | bookworm | 0.9.21.1-1+deb12u3 | not yet assigned | Not reported | [1134339] |
| Cpe | xrdp | cpe | Not reported | 0.10.6 | Not reported | Not reported | Not reported |
| Cpe | xrdp | cpe | Not reported | 0.10.6 | Not reported | NVD-CVE-2026-33689 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [xrdp]Affected
Details (6)
0.9.21.1-1+deb12u2· amd64 · bookwormAffected · Fixed:
0.9.21.1-1+deb12u3nvd · xrdp · debian · bookworm; nvd · xrdp · debian · 12
0.9.21.1-1+deb12u2· arm64 · bookwormAffected · Fixed:
0.9.21.1-1+deb12u3nvd · xrdp · debian · bookworm; nvd · xrdp · debian · 12
0.9.24-5~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
0.9.21.1-1+deb12u3nvd · xrdp · debian · bookworm; nvd · xrdp · debian · 12
0.9.24-5~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
0.9.21.1-1+deb12u3nvd · xrdp · debian · bookworm; nvd · xrdp · debian · 12
0.9.21.1-1+deb12u3· amd64 · bookworm-securityFixed · Fixed:
0.9.21.1-1+deb12u3nvd · xrdp · debian · bookworm; nvd · xrdp · debian · 12
0.9.21.1-1+deb12u3· arm64 · bookworm-securityFixed · Fixed:
0.9.21.1-1+deb12u3nvd · xrdp · debian · bookworm; nvd · xrdp · debian · 12
[Debian 13 (Trixie)]
- [xrdp]Affected
Details (5)
0.10.1-3.1+deb13u1· amd64 · trixieAffected · Fixed:
0.10.1-3.1+deb13u2nvd · xrdp · debian · 13
0.10.1-3.1+deb13u1· arm64 · trixieAffected · Fixed:
0.10.1-3.1+deb13u2nvd · xrdp · debian · 13
0.10.1-3.1+deb13u1· amd64 · trixie-security · Historical versionAffected · Fixed:
0.10.1-3.1+deb13u2nvd · xrdp · debian · 13
0.10.1-3.1+deb13u2· amd64 · trixie-securityFixed · Fixed:
0.10.1-3.1+deb13u2nvd · xrdp · debian · 13
0.10.1-3.1+deb13u2· arm64 · trixie-securityFixed · Fixed:
0.10.1-3.1+deb13u2nvd · xrdp · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10816-1.json]
- [https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6]
- [https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-92mr-6wpp-27jj]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-33689]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-33689]
- [https://security-tracker.debian.org/tracker/CVE-2026-33689]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33689.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]