CVE-2026-22852 is a critical heap-buffer-overflow vulnerability affecting FreeRDP clients prior to version 3.20.1. A malicious RDP server can exploit this flaw by sending specially crafted Audio Input (AUDIN) format lists, leading to memory corruption and a client crash. With a CVSS score of 9.8 (CRITICAL), this vulnerability is remotely exploitable without user interaction, allowing for high impact to confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness among security researchers.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.20.1CPE 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:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.