Description
xrdp is an open source remote desktop protocol (RDP) server. In affected versions an integer underflow leading to a heap overflow in the sesman server allows any unauthenticated attacker which is able to locally access a sesman server to execute code as root. This vulnerability has been patched in version 0.9.18.1 and above. Users are advised to upgrade. There are no known workarounds.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| neutrinolabs | xrdp | >= 0.9.17, < 0.9.18.1 | — |
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 | 0.9.17-2.1 | — |
| Debian 13 | xrdp | 0.9.17-2.1 | — |
| Debian 12 | xrdp | 0.9.17-2.1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | xrdp | No fix yet | — |
| Ubuntu 25.10 | xrdp | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | xrdp | 0.9.17-2ubuntu2+esm1 | USN-6474-1 |
| Ubuntu Pro 20.04 LTS | xrdp | 0.9.12-1ubuntu0.1+esm1 | USN-6474-1 |
| Ubuntu Pro 18.04 LTS | xrdp | 0.9.5-2ubuntu0.1~esm2 | USN-6474-1 |
| Ubuntu Pro 16.04 LTS | xrdp | 0.6.1-2ubuntu0.3+esm3 | USN-6474-1 |
| Ubuntu Pro 14.04 LTS | xrdp | 0.6.0-1ubuntu0.1+esm3 | USN-6474-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xrdp | 0.9.19-1.1 | openSUSE-SU-2024:12112-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xrdp | 0.9.18.1-r0 | — |
| Alpine v3.23 | xrdp | 0.9.18.1-r0 | — |
| Alpine v3.22 | xrdp | 0.9.18.1-r0 | — |
| Alpine v3.21 | xrdp | 0.9.18.1-r0 | — |
| Alpine v3.20 | xrdp | 0.9.18.1-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xrdp | 0.9.18.1-r0 | — |
| Alpine v3.18 | xrdp | 0.9.18.1-r0 | — |
| Alpine v3.17 | xrdp | 0.9.18.1-r0 | — |
| Alpine v3.16 | xrdp | 0.9.18.1-r0 | — |
| Alpine v3.15 | xrdp | 0.9.18.1-r0 | — |
Advisories 2
- USN-6474-1 xrdp vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- openSUSE-SU-2024:12112-1 libpainter0-0.9.19-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025