CVE-2026-30783

Home/CVE/A vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android, WebClient (Cl

CVE

A vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android, WebClient (Cl

A vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android, WebClient (Client signaling, API sync loop, config management modules) allows Privilege Abuse. This vulnerability is associated with program files src/rendezvous_mediator.Rs, src/hbbs_http/sync.Rs and program routines API sync loop, api-server config handling. This issue affects RustDesk Client: through 1.4.5.

CRITICAL · CVSS 9.8 EPSS 0.00139

Act now

Public exploit or PoC is available
CVSS base score ≥ 7.0

Sigma rules15 YARA rules0

⬡

Weakness Classification

CWE-602Client-Side Enforcement of Server-Side Security

CWE-841Improper Enforcement of Behavioral Workflow

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Affected Products & Versions

rustdesk<= 1.4.5

⚠

Public Exploits & PoCs

pocdocs.google.com · 2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ...docs.google.com

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Sigma Hunt Rules

Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.

productcriticalHackTool - Windows Credential Editor (WCE) Execution

productcriticalWindows Credential Editor Registry

producthighOpenCanary - MSSQL Login Attempt Via Windows Authentication

producthighWindows LAPS Credential Dump From Entra ID

producthighTamper Windows Defender - PSClassic

producthighTamper Windows Defender Remove-MpPreference - ScriptBlockLogging

Show all 15 top matchesproducthighTamper Windows Defender - ScriptBlockLogging
producthighSuspicious Microsoft Office Child Process - MacOS
producthighRemote Access Tool - Renamed MeshAgent Execution - MacOS
producthighBinary Padding - MacOS
productmediumSuspicious Execution via macOS Script Editor
productmediumSystem Information Discovery Via Sysctl - MacOS
productmediumNew File Exclusion Added To Time Machine Via Tmutil - MacOS
productmediumSuspicious MacOS Firmware Activity
productmediumDisk Image Mounting Via Hdiutil - MacOS

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Scoring & Timeline

9.8

CRITICAL · CVSS v3.1 · 2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD05 Mar 2026 · 04:16 PM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC triage · cisa-vulnrichment

Exploitation

poc

Automatable

Technical impact

total

SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

https://rustdesk.com/docs/en/client/Product

https://www.vulsec.org/Third Party Advisory

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