9.8
CRITICAL CVSS 3.1
CVE-2026-30793
RustDesk Flutter URI Handler Sets Permanent Password Without Privilege Check or User Confirmation
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.

INFO

Published Date :

March 5, 2026, 4:16 p.m.

Last Modified :

March 25, 2026, 3:34 p.m.

Remotely Exploit :

Yes !

Source :

2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe
Affected Products

The following products are affected by CVE-2026-30793 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apple macos
2 Apple iphone_os
1 Google android
1 Linux linux_kernel
1 Microsoft windows
1 Rustdesk rustdesk
1 Rustdesk-client rustdesk_client
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL [email protected]
CVSS 4.0 CRITICAL 2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe
CVSS 4.0 CRITICAL 2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe
Solution
Update RustDesk Client to the latest version to fix privilege escalation via CSRF.
  • Update RustDesk Client to version 1.4.6 or later.
  • Verify FFI bridge and URI handler configurations.
  • Review FFI module security practices.
  • Implement CSRF protection for URI schemes.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-30793.

URL Resource
https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub Third Party Advisory Exploit
https://github.com/rustdesk/hbb_common Product
https://github.com/rustdesk/rustdesk Product
https://www.vulsec.org/ Not Applicable
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-30793 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-30793 weaknesses.

CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs Accessing Functionality Not Properly Constrained by ACLs CAPEC-5: Blue Boxing Blue Boxing CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-17: Using Malicious Files Using Malicious Files CAPEC-39: Manipulating Opaque Client-based Data Tokens Manipulating Opaque Client-based Data Tokens CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-51: Poison Web Service Registry Poison Web Service Registry CAPEC-59: Session Credential Falsification through Prediction Session Credential Falsification through Prediction CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay) CAPEC-76: Manipulating Web Input to File System Calls Manipulating Web Input to File System Calls CAPEC-77: Manipulating User-Controlled Variables Manipulating User-Controlled Variables CAPEC-87: Forceful Browsing Forceful Browsing CAPEC-104: Cross Zone Scripting Cross Zone Scripting CAPEC-127: Directory Indexing Directory Indexing CAPEC-402: Bypassing ATA Password Security Bypassing ATA Password Security CAPEC-647: Collect Data from Registries Collect Data from Registries CAPEC-668: Key Negotiation of Bluetooth Attack (KNOB) Key Negotiation of Bluetooth Attack (KNOB) CAPEC-62: Cross Site Request Forgery Cross Site Request Forgery CAPEC-111: JSON Hijacking (aka JavaScript Hijacking) JSON Hijacking (aka JavaScript Hijacking) CAPEC-462: Cross-Domain Search Timing Cross-Domain Search Timing CAPEC-467: Cross Site Identification Cross Site Identification

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-30793 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-30793 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Mar. 25, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CPE Configuration AND OR *cpe:2.3:a:rustdesk:rustdesk:*:*:*:*:webclient:*:*:* versions up to (including) 1.4.5 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* cpe:2.3:o:google:android:-:*:*:*:*:*:*:* cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
    Added Reference Type VULSec Labs: https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub Types: Exploit, Third Party Advisory
    Added Reference Type VULSec Labs: https://github.com/rustdesk/hbb_common Types: Product
    Added Reference Type VULSec Labs: https://github.com/rustdesk/rustdesk Types: Product
    Added Reference Type VULSec Labs: https://www.vulsec.org/ Types: Not Applicable
  • CVE Modified by 2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe

    Mar. 05, 2026

    Action Type Old Value New Value
    Added Reference https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub
    Added Reference https://www.vulsec.org/
  • New CVE Received by 2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe

    Mar. 05, 2026

    Action Type Old Value New Value
    Added 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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/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
    Added CWE CWE-352
    Added CWE CWE-285
    Added Reference https://github.com/rustdesk/hbb_common
    Added Reference https://github.com/rustdesk/rustdesk
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.