CVE-2026-23534

Katalog CVE

CVSS 9.8 · Critical EPSS 0,52%

Kerentanan Heap-based Buffer Overflow pada freerdp. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow occurs in the ClearCodec bands decode path when crafted band coordinates allow writes past the end of the destination surface buffer. A malicious server can trigger a client‑side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout. Version 3.21.0 contains a patch for the issue.

Rincian

Terbit di NVD

19 Januari 2026

Terakhir diubah

15 Juli 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-122: Heap-based Buffer Overflow

EPSS (30 hari)

0,52% peluang dieksploitasi; lebih tinggi dari 42,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3frr-mp8w-4599 exploit · advisory vendor
• https://github.com/FreeRDP/FreeRDP/blob/38514dfa5813aa945a86cfbcec279033f8394468/libfreerdp/codec/clear.c#L878... product
• https://github.com/FreeRDP/FreeRDP/blob/38514dfa5813aa945a86cfbcec279033f8394468/libfreerdp/codec/clear.c#L883... product
• https://github.com/FreeRDP/FreeRDP/releases/tag/3.21.0 release notes
• https://access.redhat.com/errata/RHSA-2026:2048
• https://access.redhat.com/errata/RHSA-2026:2081
• https://access.redhat.com/errata/RHSA-2026:2222
• https://access.redhat.com/errata/RHSA-2026:2736
• https://access.redhat.com/errata/RHSA-2026:2952
• https://access.redhat.com/errata/RHSA-2026:3037
• https://access.redhat.com/security/cve/CVE-2026-23534
• https://bugzilla.redhat.com/show_bug.cgi?id=2430888
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23534.json