CVE-2026-33952 is a pre-authentication denial of service vulnerability affecting FreeRDP clients prior to version 3.24.2. A malicious RDP Gateway can exploit an unvalidated 'auth_length' field, causing vulnerable FreeRDP clients using RPC-over-HTTP transport to crash with a SIGABRT error. Rated Medium (CVSS 6.0), this vulnerability requires user interaction to connect to a malicious gateway, resulting in a client-side denial of service. There is currently no evidence of active exploitation, public exploit code, or significant community discussion regarding this issue.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.24.2CPE matchmatch criteria | cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/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
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.