VULNERABILITY INTELLIGENCE
CVE-2026-44420
CVSS score8.8 HIGH
EPSS probability4.56%
CISA KEVNot currently listed
Published2026-05-29
Last modified2026-07-27
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP client can trigger a heap-buffer-overflow write in FreeRDP's server-side clipboard (cliprdr) channel by sending a CB_CLIP_CAPS PDU with a too-small capabilitySetLength. This can crash the server process (remote DoS) and may be exploitable for code execution because it corrupts heap memory. This vulnerability is fixed in 3.26.0.
Weakness classification
- CWE-122: Heap-based Buffer Overflow
- CWE-131: Incorrect Calculation of Buffer Size