CVE-2026-56297

Katalog CVE

CVSS 8.1 · High EPSS 0,47%

Kerentanan Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') pada freerdp. Skor CVSS 3.1 8.1 (High) menurut NVD.

Deskripsi (NVD)

FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcman_channel_close and dvcman_call_on_receive due to improper synchronization of channel_callback access. A malicious RDP server can trigger a race condition by sending DYNVC_DATA and DYNVC_CLOSE messages concurrently, causing heap-use-after-free in the drdynvc client thread and potentially enabling remote code execution or denial of service.

Rincian

Terbit di NVD

8 Juli 2026

Terakhir diubah

10 Juli 2026

Status NVD

Analyzed

CVSS 3.1

8.1 (High), sumber NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

EPSS (30 hari)

0,47% peluang dieksploitasi; lebih tinggi dari 38,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3mv2-5q57-2v8h exploit · advisory vendor
• https://www.vulncheck.com/advisories/freerdp-use-after-free-via-race-condition-in-drdynvc-channel-callback advisory pihak ketiga