Vulnerability details
CVE-2026-41521
xrdp: lib_framebuffer_update Has Integer Overflow Heap Info Leak & ASLR Bypass
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.2High | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| neutrinolabs | xrdp | < 0.10.6.1 | CVEProject cvelistV5 (CNA) |
References and advisories
2- https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-v8w6-pf78-9458 x_refsource_CONFIRM
- https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1 x_refsource_MISC
Details
- Published
- 2026-07-20
- Last updated
- 2026-07-20
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-190Integer Overflow or Wraparound