high8.8
CVE-2026-44420
FreeRDP is a free implementation of the Remote Desktop Protocol.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Freerdp | Freerdp | before 3.26.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mvpx-xj7r-3p3r
- https://access.redhat.com/errata/RHSA-2026:36203
- https://access.redhat.com/errata/RHSA-2026:46393
- https://access.redhat.com/security/cve/CVE-2026-44420
- https://bugzilla.redhat.com/show_bug.cgi?id=2483480
- https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-h6wq-j5mv-f3q8
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44420.json