Vulnerability Description
xrdp is an open source RDP server. Versions 0.10.6 and prior contain an integer overflow vulnerability when processing screen update messages within the vnc-any connection mode. A malicious remote VNC server can send crafted image dimensions that cause an integer overflow during memory buffer size calculation, resulting in an undersized allocation. Subsequent processing of the incoming image data using the original oversized parameters leads to an out-of-bounds read. An unauthenticated remote attacker could exploit this flaw to disclose sensitive information from the heap memory or cause a denial of service (DoS) via a process crash. This issue has been fixed in version 0.10.6.1.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Neutrinolabs | Xrdp | < 0.10.6.1 |
Related Weaknesses (CWE)
References
- https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1Release Notes
- https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-v8w6-pf78-9458MitigationVendor Advisory
FAQ
What is CVE-2026-41521?
CVE-2026-41521 is a vulnerability with a CVSS score of 8.2 (HIGH). xrdp is an open source RDP server. Versions 0.10.6 and prior contain an integer overflow vulnerability when processing screen update messages within the vnc-any connection mode. A malicious remote VNC...
How severe is CVE-2026-41521?
CVE-2026-41521 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-41521?
Check the references section above for vendor advisories and patch information. Affected products include: Neutrinolabs Xrdp.