Vulnerability · Published Mar 5, 2026 · Assigned by VULSec

CVE-2026-30793RustDesk Flutter URI Handler Sets Permanent Password Without Privilege Check or User Confirmation

Critical 9.3

In plain English

A critical-severity cross-site request forgery 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 0.3% (higher than 29% of all known vulnerabilities).

Severity (CVSS 4.0)9.3Critical

Exploit odds (30 days)0.3%top 71.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Cross-Site Request Forgery (CSRF) vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Flutter URI scheme handler, FFI bridge modules) allows Privilege Escalation. This vulnerability is associated with program files flutter/lib/common.Dart, src/flutter_ffi.Rs and program routines URI handler for rustdesk://password/, bind.MainSetPermanentPassword(). 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-285, CWE-352 · 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://github.com/rustdesk/rustdesk product
https://github.com/rustdesk/hbb_common product
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