CVE-2026-121401

MEDIUM 4.3

FreeRDP before 3.32.2 Denial of Service via RD Gateway extended-auth packet

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

FreeRDP before 3.32.2 contains a denial of service vulnerability where rdg_process_packet dispatches a PKT_TYPE_EXTENDED_AUTH_MSG without verifying negotiated mode or auth context. A malicious or compromised RD Gateway can send the extended-auth packet before tunnel authentication, triggering a null-pointer dereference that crashes the client.

CWE	CWE-476
Vendor	freerdp
Product	freerdp
Published	Nov 3, 2026

Stay Ahead of the Next One

Get instant alerts for freerdp freerdp

Be the first to know when new medium vulnerabilities affecting freerdp freerdp are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Affected Versions

FreeRDP / FreeRDP

0 < 3.32.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8rjm-m7xg-mg6m vulncheck.com: https://www.vulncheck.com/advisories/freerdp-before-3.32.2-denial-of-service-via-rd-gateway-extended-auth-packet

Credits

Kushalkhemka mayank-jangid-moon opensec-intelligence