CVE-2026-57850

HIGH 1 PoC
MEDIUM Priority: 0.04 BB Relevance: 77/100
Published: 2026-07-10 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
AT: None
VC: High
VI: High
VA: Low

Description

RustDesk before 1.4.9 does not enforce a session's authorized connection scope on the server side, so a peer granted a limited session type (FileTransfer, PortForward, ViewCamera, or Terminal) can send control messages and login options reserved for a full Remote session. An authenticated remote peer can exploit this missing scope check to act outside its granted scope, injecting out-of-scope control messages to observe and control the host beyond the permissions it was given.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
RustDesk RustDesk 0 < 1.4.9

Proof of Concept (1)

Bug Bounty Relevance

77 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction
✓ PoC available (1)

CVSS Score

8.7 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.50%
Raw Score 0.004980
Percentile 43.3%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00498
2026-11-12
0.00498
2026-11-10
0.00498
2026-11-09
0.00498
2026-11-08
0.00498

Intelligence Sources

mitre ref →