Buffer Overflow occurs in xrdp
Priority MEDIUM 50CWE-120Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
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 buffer over flow in xrdp_mm_chan_data_in() function. There are no known workarounds for this issue. Users are advised to upgrade.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00927 60th percentileScored 2026-11-07
Fix Fixed xrdp (neutrinolabs): 0.9.21
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| neutrinolabs | xrdp | before 0.9.21 | 0.9.21 | Patch available | CNA |
- xrdp Vendorneutrinolabs Affected before 0.9.21 Fixed in 0.9.21 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:* | before 0.9.21 | Vulnerable | neutrinolabs |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
- cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:* Versions before 0.9.21 Vulnerable ·neutrinolabs
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
Remediation
- Fix · CNA xrdp (neutrinolabs) Fixed in 0.9.21
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2022-23479
References
More neutrinolabs Xrdp vulnerabilities
- TI-2025-42163 xrdp improperly checks bounds of domain string length, which leads to Stack-based Buffer Overflow CVSS 3.1CRITICAL 9.8
- TI-2026-29860 xrdp: lib_palette_update Heap Buffer Overflow & RCE CVSS 3.1CRITICAL 9.8
- TI-2022-07540 Buffer Overflow in xrdp CVSS 3.1CRITICAL 9.8
- TI-2022-07538 Out of Bound Write in xrdp CVSS 3.1CRITICAL 9.8
- TI-2022-07537 Buffer Overflow in xrdp CVSS 3.1CRITICAL 9.8
- TI-2022-07528 Buffer Overflow in xrdp CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-23479 · CVE Program
- CVE-2022-23479 · NVD
- FIRST EPSS
- CVE-2022-23479 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences