CVE-2026-67293

Katalog CVE

CVSS 4.2 · Medium EPSS 0,24%

Kerentanan Improper Certificate Validation pada freerdp. Skor CVSS 3.1 4.2 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

FreeRDP before 3.29.0 (affected versions <= 3.28.0) contains an improper certificate hostname validation vulnerability. The TLS hostname matcher (tls_match_hostname() in libfreerdp/crypto/tls.c) treats a wildcard pattern such as *.example.com as matching any hostname ending in .example.com, so it incorrectly accepts a wildcard certificate for multi-label subdomains like a.b.example.com (which OpenSSL's X509_check_host() rejects). This weakens TLS server authentication under wildcard-certificate conditions.

Rincian

Terbit di NVD

1 Agustus 2026

Terakhir diubah

29 September 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-295: Improper Certificate Validation

EPSS (30 hari)

0,24% peluang dieksploitasi; lebih tinggi dari 13,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5wr6-8m8j-3h7f exploit · advisory vendor
• https://github.com/FreeRDP/FreeRDP/commit/f3b4347105114fe7453828736bea069999af319f patch
• https://www.vulncheck.com/advisories/freerdp-before-improper-certificate-hostname-validation advisory pihak ketiga