CVE-2026-22859
FreeRDP has a heap-buffer-overflow in urb_select_configuration
- State
- Published
- Severity
- 5.6 Medium
- Published
- Jan 14, 2026
- Updated
- Aug 19, 2026
- Reserved
- Jan 12, 2026
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, the URBDRC client does not perform bounds checking on server‑supplied MSUSB_INTERFACE_DESCRIPTOR values and uses them as indices in libusb_udev_complete_msconfig_setup, causing an out‑of‑bounds read. This vulnerability is fixed in 3.20.1.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.6 Medium | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:P | GitHub_M |
| 3.1 | 7.4 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H | redhat-SADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
FreeRDPFreeRDP |
|
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-56f5-76qv-2r36
- https://github.com/FreeRDP/FreeRDP/releases/tag/3.20.1
- https://access.redhat.com/security/cve/CVE-2026-22859vdb-entry
- RHBZ#2429653issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22859.json
- https://access.redhat.com/errata/RHSA-2026:4471vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:4121vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:3068vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:19033vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:3334vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:4433vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:4439vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:4446vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:4440vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:4489vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:4437vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:4438vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:3975vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:3067vendor-advisory
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