CVE-2026-55564

Katalog CVE

CVSS 7.1 · High EPSS 0,44%

Kerentanan Out-of-bounds Read pada freerdp. Skor CVSS 3.1 7.1 (High) menurut NVD.

Deskripsi (NVD)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, the glyph_cache_get function in libfreerdp/cache/glyph.c checks whether index is greater than cache->number instead of greater than or equal to it. A malicious RDP server can use GLYPH_FRAGMENT_USE replay in update_process_glyph_fragments to make the default cache receive index 254 when cache->number is 254, reading one pointer beyond the entries array and dereferencing it as a glyph. This can crash the client and may disclose adjacent heap data. 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

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

Jenis kelemahan (CWE)

CWE-125: Out-of-bounds Read
CWE-193: Off-by-one Error

EPSS (30 hari)

0,44% peluang dieksploitasi; lebih tinggi dari 36,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6xmj-pr98-cx4c exploit · mitigasi · advisory vendor
• https://github.com/FreeRDP/FreeRDP/commit/c29324750e3cbcba8761f147b7a5235cc686930f patch
• https://github.com/FreeRDP/FreeRDP/pull/12885 issue tracking · patch
• https://github.com/FreeRDP/FreeRDP/releases/tag/3.27.0 release notes