CVE-2026-109245

Published: Oct 12, 2026Modified: Oct 14, 2026

7.4

Vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

Description

FreeRDP 3.0.0 before 3.32.0 contains an improper certificate validation vulnerability in freerdp_http_request() in libfreerdp/utils/http.c that completes TLS handshakes without verifying the server certificate chain. On-path attackers can impersonate login.microsoftonline.com in the Azure AD authentication flow to capture OAuth authorization codes and substitute the OpenID discovery document.

Related CWEs

CWE-295

Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

References (3)

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h44v-39x6-9xvg

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-improper-certificate-validation-in-freerdp-http-request

Source: disclosure@vulncheck.com

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h44v-39x6-9xvg

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.