CVE catalog

CVE-2026-109245

Severity: High · CVSS 7.4CVSS: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
Published: Sep 22, 2026, 10:00:00 PM UTC
Updated: Oct 12, 2026, 5:17:15 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.24% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	freerdp2	bookworm	`2.11.7+dfsg1-6~deb12u1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	freerdp2	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[freerdp2-dev]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[freerdp2-shadow-x11]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[freerdp2-wayland]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[freerdp2-x11]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libfreerdp2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libfreerdp-client2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libfreerdp-server2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libfreerdp-shadow2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libfreerdp-shadow-subsystem2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libuwac0-0]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libuwac0-dev]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libwinpr2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libwinpr2-dev]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libwinpr-tools2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[winpr-utils]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm

Observed: Oct 23, 2026, 8:36:02 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]