CVE-2026-55193

Katalog CVE

CVSS 8.8 · High EPSS 0,45%

Kerentanan Heap-based Buffer Overflow pada freerdp. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, FreeRDP clients using TS Gateway accept a server-controlled max_xmit_frag value in libfreerdp/core/gateway/rpc_bind.c without bounding it to the 4088-byte ReceiveFragment allocation. A malicious gateway can advertise 65535 and then send a response fragment of the same length, causing rpc_channel_read in libfreerdp/core/gateway/rpc.c to write up to 65535 bytes into the smaller ReceiveFragment buffer. This can crash the client and may permit code execution through attacker-controlled heap corruption. This issue is fixed in version 3.27.0.

Rincian

Terbit di NVD

19 Agustus 2026

Terakhir diubah

29 September 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-122: Heap-based Buffer Overflow

EPSS (30 hari)

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

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7rp4-66mc-j9vx exploit · advisory vendor
• https://github.com/FreeRDP/FreeRDP/commit/a863ef1cf1cdabf9019280e5658f806e73bb50e8 patch
• https://github.com/FreeRDP/FreeRDP/pull/12873 issue tracking · patch
• https://github.com/FreeRDP/FreeRDP/releases/tag/3.27.0 release notes