CVE-2026-58056Public exploitNetwork attack vector

Remote-control scope expansion via file-transfer authorization

Published Jun 28, 2026 · Updated Jun 28, 2026

Incorrect authorization in RustDesk 1.4.8 and earlier allows remote authenticated users to control input and capture screens via file-transfer sessions. The post-authorization dispatcher checks broad capability flags instead of AuthConnType, while FileTransfer login leaves input enabled and screenshot handlers reachable. A valid password proof or user-approved file-transfer session is required; the flaw does not bypass authentication.

CVSS severity7.2
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Incorrect authorization in RustDesk 1.4.8 and earlier allows remote authenticated users to control input and capture screens via file-transfer sessions. The post-authorization dispatcher checks broad capability flags instead of AuthConnType, while FileTransfer login leaves input enabled and screenshot handlers reachable. A valid password proof or user-approved file-transfer session is required; the flaw does not bypass authentication.

The record

CVE
CVE-2026-58056
Published
Jun 28, 2026
Updated
Jun 28, 2026
Vendor
RustDesk
Product
RustDesk
Classifications
CWE-863, T1113, T1219
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=ff226f6d8013dee2de5a6553abaf67bf32b3e875

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

RustDesk · RustDeskversion=0 <=ff226f6d8013dee2de5a6553abaf67bf32b3e875

Published CVSS scores

7.2VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
7.6VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1113Screen Capture
T1219Remote Access Software

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo