CVE-2026-67299

Katalog CVE

CVSS 7.5 · High EPSS 0,40%

Kerentanan Use After Free pada freerdp. Skor CVSS 3.1 7.5 (High) menurut vulncheck.com.

Deskripsi (NVD)

FreeRDP before 3.29.0 contains a client-side heap use-after-free in the async update message proxy for WINDOW_ICON_ORDER when AsyncUpdate is enabled (e.g. xfreerdp /async-update). In update_message_WindowIcon() a shallow CopyMemory() overwrites a freshly allocated lParam->iconInfo with the parser-owned windowIcon->iconInfo pointer. After the parser callback returns, update_recv_window_info_order() frees window_icon.iconInfo, but the queued async message still retains and later dispatches that stale pointer. A malicious or compromised RDP server sending a crafted RAIL Window Alternate Secondary Order with WINDOW_ORDER_ICON can trigger use-after-free, leading to memory corruption and client crash.

Rincian

Terbit di NVD

1 Agustus 2026

Terakhir diubah

8 September 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,40% peluang dieksploitasi; lebih tinggi dari 32,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-34hq-hwjw-q8v3 exploit · advisory vendor
• https://github.com/FreeRDP/FreeRDP/commit/5370fb26fbf034ecd11d3026b6ad639b5fff493f patch
• https://www.vulncheck.com/advisories/freerdp-before-use-after-free-via-windowicon-async-message patch · advisory pihak ketiga