CVE-2026-55192

Katalog CVE

CVSS 8.2 · High EPSS 0,45%

Kerentanan Out-of-bounds Read pada freerdp. Skor CVSS 3.1 8.2 (High) menurut NVD.

Deskripsi (NVD)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, FreeRDP H.264 decoder backends can return YUV planes sized from the bitstream without comparing the decoded width and height to the RDPGFX surface dimensions used to validate region rectangles. A malicious RDP server can provide an AVC420 or AVC444 bitstream whose decoded frame is smaller than the negotiated surface, causing yuv420_context_decode and the YUV-to-RGB conversion paths to read beyond the decoder-owned planes in libfreerdp/codec/h264.c and the selected H.264 backend. This can disclose client memory or crash the client. This issue is fixed in version 3.27.0.

Rincian

Terbit di NVD

19 Agustus 2026

Terakhir diubah

22 September 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-125: Out-of-bounds Read

EPSS (30 hari)

0,45% peluang dieksploitasi; lebih tinggi dari 37,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3mmf-qh4f-frm6 exploit · mitigasi · advisory vendor
• https://github.com/FreeRDP/FreeRDP/commit/0cd45b70bb1fe6befd258ff64c46461947e99adb patch
• https://github.com/FreeRDP/FreeRDP/pull/12873 issue tracking · patch
• https://github.com/FreeRDP/FreeRDP/releases/tag/3.27.0 release notes