Description
xrdp is an open source RDP server. xrdp versions prior to 0.10.0 have a vulnerability that allows attackers to make an infinite number of login attempts. The number of max login attempts is supposed to be limited by a configuration parameter `MaxLoginRetry` in `/etc/xrdp/sesman.ini`. However, this mechanism was not effectively working. As a result, xrdp allows an infinite number of login attempts.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| neutrinolabs | xrdp | <= 0.10.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | xrdp | 0.10.1-1 | — |
| Debian 13 | xrdp | 0.10.1-1 | — |
| Debian 12 | xrdp | 0.9.21.1-1+deb12u1 | — |
| Debian 11 | xrdp | 0.9.21.1-1~deb11u2 | DLA-4166-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | xrdp | 0.10.1-3.1+deb13u1build0.25.10.1 | USN-8476-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | xrdp | 0.9.24-4ubuntu0.1~esm1 | USN-8476-1 |
| Ubuntu Pro 22.04 LTS | xrdp | 0.9.17-2ubuntu3+esm2 | USN-8476-1 |
| Ubuntu Pro 20.04 LTS | xrdp | 0.9.12-1ubuntu0.1+esm2 | USN-8476-1 |
| Ubuntu Pro 18.04 LTS | xrdp | 0.9.5-2ubuntu0.1~esm3 | USN-8476-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | xrdp | 0.9.13.1-150600.15.3.1 | SUSE-SU-2025:0336-1 |
| SLES 15 SP5 | xrdp | 0.9.13.1-150200.4.33.1 | SUSE-SU-2025:0350-1 |
| SLES 15 SP4 | xrdp | 0.9.13.1-150200.4.33.1 | SUSE-SU-2025:0350-1 |
| SLES 15 SP3 | xrdp | 0.9.13.1-150200.4.33.1 | SUSE-SU-2025:0350-1 |
| SLES 12 SP5 | xrdp | 0.9.10-3.19.1 | SUSE-SU-2025:0335-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | xrdp | 0.9.13.1-150200.4.33.1 | SUSE-SU-2025:0350-1 |
| SLES for SAP 15 SP4 | xrdp | 0.9.13.1-150200.4.33.1 | SUSE-SU-2025:0350-1 |
| SLES for SAP 15 SP3 | xrdp | 0.9.13.1-150200.4.33.1 | SUSE-SU-2025:0350-1 |
| SLE HPC 15 SP5 | xrdp | 0.9.13.1-150200.4.33.1 | SUSE-SU-2025:0350-1 |
| SLE HPC 15 SP4 | xrdp | 0.9.13.1-150200.4.33.1 | SUSE-SU-2025:0350-1 |
| SLE HPC 15 SP3 | xrdp | 0.9.13.1-150200.4.33.1 | SUSE-SU-2025:0350-1 |
| SUSE Manager Server 4.3 | xrdp | 0.9.13.1-150200.4.33.1 | SUSE-SU-2025:0350-1 |
| SUSE Manager Proxy 4.3 | xrdp | 0.9.13.1-150200.4.33.1 | SUSE-SU-2025:0350-1 |
| SUSE Enterprise Storage 7.1 | xrdp | 0.9.13.1-150200.4.33.1 | SUSE-SU-2025:0350-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xrdp | 0.9.27-2.1 | openSUSE-SU-2026:10816-1 |
| openSUSE Leap 15.6 | xrdp | 0.9.13.1-150600.15.3.1 | SUSE-SU-2025:0336-1 |
Advisories 6
- USN-8476-1 xrdp vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- openSUSE-SU-2026:10816-1 libpainter0-0.9.27-2.1 on GA media SUSE / openSUSE Security Updates · May 20, 2026
- DLA-4166-1 xrdp - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2025:0336-1 Security update for xrdp SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0335-1 Security update for xrdp SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0350-1 Security update for xrdp SUSE / openSUSE Security Updates · Feb 4, 2026