# CVE-2026-30790

## Summary

- **CVE ID:** CVE-2026-30790
- **Severity:** HIGH
- **CVSS Score:** 9.3 (CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-307, CWE-916, CWE-319
- **Published:** Mar 5, 2026
- **Last Modified:** Jun 22, 2026

## Description

Improper Restriction of Excessive Authentication Attempts, Use of Password Hash With Insufficient Computational Effort vulnerability in rustdesk-server-pro RustDesk Server Pro rustdesk-server-pro on Windows, MacOS, Linux (Peer authentication, API login modules), rustdesk-server RustDesk Server (OSS) rustdesk-server on Windows, MacOS, Linux (Peer authentication, API login modules) allows Password Brute Forcing. This vulnerability is associated with program files src/server/connection.Rs and program routines Salt/challenge generation, SHA256(SHA256(pwd+salt)+challenge) verification.

This issue affects RustDesk Server Pro: through 1.7.5; RustDesk Server (OSS): through 1.1.15.

## Affected Products

- rustdesk-server-pro — RustDesk Server Pro (0)
- rustdesk-server — RustDesk Server (OSS) (0)
- rustdesk-client — RustDesk Client (0)

## References

- [CNA](https://github.com/rustdesk)
- [CNA](https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub)
- [CNA](https://www.vulsec.org/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.22%
- **EPSS Percentile:** 13.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._