Vulnerability · Published Mar 5, 2026 · Assigned by VULSec

CVE-2026-30797RustDesk rustdesk://config/ URI Silently Re-homes Client to Attacker-Controlled Server

Critical 9.3

In plain English

A critical-severity missing authorization in RustDesk Client from rustdesk-client. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 4.0)9.3Critical

Exploit odds (30 days)0.5%top 55.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Missing Authorization vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Flutter URI scheme handler, config import modules) allows Application API Message Manipulation via Man-in-the-Middle. This vulnerability is associated with program files flutter/lib/common.Dart and program routines importConfig() via URI handler. This issue affects RustDesk Client: through 1.4.5.

Affected products (as reported)

Vendor	Product	Versions
rustdesk-client	RustDesk Client	0 – through 1.4.5

Weakness: CWE-862, CWE-749 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

References

https://rustdesk.com/docs/en/client/ technical-description, x_--config documentation
https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub third-party-advisory, exploit
https://www.vulsec.org/ vdb-entry, third-party-advisory