Improper Certificate Validation vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (HTTP API client, TLS transport modules) allows Adversary in the Middle (AiTM). This vulnerability is associated with program files src/hbbs_http/http_client.Rs and program routines TLS retry with danger_accept_invalid_certs(true).

This issue affects RustDesk Client: through 1.4.5.

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Tracking

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Advisories

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Fixes

Solution

Remove automatic fallback. Treat TLS handshake failures as fatal.


Workaround

Ensure network path to API server cannot be intercepted (VPN, direct link)

History

Wed, 25 Mar 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple iphone Os
Apple macos
Google
Google android
Linux
Linux linux Kernel
Microsoft
Microsoft windows
Rustdesk
Rustdesk rustdesk
CPEs cpe:2.3:a:rustdesk:rustdesk:*:*:*:*:webclient:*:*:*
cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple iphone Os
Apple macos
Google
Google android
Linux
Linux linux Kernel
Microsoft
Microsoft windows
Rustdesk
Rustdesk rustdesk
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Tue, 17 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 05 Mar 2026 18:15:00 +0000


Thu, 05 Mar 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 05 Mar 2026 15:45:00 +0000

Type Values Removed Values Added
Description Improper Certificate Validation vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (HTTP API client, TLS transport modules) allows Adversary in the Middle (AiTM). This vulnerability is associated with program files src/hbbs_http/http_client.Rs and program routines TLS retry with danger_accept_invalid_certs(true). This issue affects RustDesk Client: through 1.4.5.
Title RustDesk HTTP Client Silently Accepts Invalid TLS Certificates After Handshake Failure
First Time appeared Rustdesk-client
Rustdesk-client rustdesk Client
Weaknesses CWE-295
CPEs cpe:2.3:a:rustdesk-client:rustdesk_client:*:*:android:*:*:*:*:*
cpe:2.3:a:rustdesk-client:rustdesk_client:*:*:ios:*:*:*:*:*
cpe:2.3:a:rustdesk-client:rustdesk_client:*:*:linux:*:*:*:*:*
cpe:2.3:a:rustdesk-client:rustdesk_client:*:*:macos:*:*:*:*:*
cpe:2.3:a:rustdesk-client:rustdesk_client:*:*:windows:*:*:*:*:*
Vendors & Products Rustdesk-client
Rustdesk-client rustdesk Client
References
Metrics cvssV4_0

{'score': 9.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VULSec

Published:

Updated: 2026-03-17T14:34:54.701Z

Reserved: 2026-03-05T14:13:37.203Z

Link: CVE-2026-30794

cve-icon Vulnrichment

Updated: 2026-03-05T16:35:54.307Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-05T16:16:20.177

Modified: 2026-03-25T15:29:08.903

Link: CVE-2026-30794

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-06T15:07:33Z

Weaknesses