CVE-2026-73242

A flaw in FreeRDP's Kerberos implementation allows a malicious RDP peer to cause an out-of-bounds memory access by providing an unbounded GSS Wrap-token EC field. This occurs during CredSSP/NLA decryption and can lead to a denial of service or information disclosure.

An Important out-of-bounds memory vulnerability in FreeRDP's CredSSP/NLA Kerberos decryption allows a malicious RDP endpoint to execute arbitrary code or expose sensitive information on connected clients and servers. This flaw only affects FreeRDP 3.0.0 and newer, meaning RHEL 9 and older versions are not affected.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Use FreeRDP with Kerberos/NLA only against trusted RDP peers. As a client, avoid connecting to untrusted RDP servers; as a server, restrict inbound RDP to trusted clients using host firewall rules or network segmentation.