CVE-2026-68579

Katalog CVE

CVSS 9.6 · Critical EPSS 0,48%

Kerentanan Out-of-bounds Write pada freerdp. Skor CVSS 3.1 9.6 (Critical) menurut vulncheck.com.

Deskripsi (NVD)

FreeRDP before 3.30.0 (<= 3.29.0) contains a heap-based buffer overflow in the Windows clipboard client's CliprdrStream_Read function (client/Windows/wf_cliprdr.c). When an OLE paste consumer (e.g. explorer.exe) calls IStream::Read with a fixed-size buffer of cb bytes, CliprdrStream_Read requests file contents from the RDP server and then copies the response into the caller's buffer using the server-supplied length (req_fsize) instead of cb. A malicious or compromised RDP server can return an oversized CB_FILECONTENTS_RESPONSE, causing an out-of-bounds write of attacker-controlled data into the paste consumer's heap buffer when a user pastes server-offered clipboard file contents.

Rincian

Terbit di NVD

2 Agustus 2026

Terakhir diubah

29 September 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

0,48% peluang dieksploitasi; lebih tinggi dari 39,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-m37j-jcr2-8gcc advisory vendor
• https://github.com/FreeRDP/FreeRDP/commit/5e8e987b469b60a3bafadf8f5afc40f91c09f458 patch
• https://www.vulncheck.com/advisories/freerdp-before-heap-overflow-via-cliprdrstream-read advisory pihak ketiga