CVE-2026-30785
RustDesk Encrypts Local Passwords with World-Readable Machine ID and Fixed Zero Nonce (XSalsa20-Poly1305)
- State
- Published
- Severity
- 8.2 High
- Published
- Mar 5, 2026
- Updated
- Mar 6, 2026
- Reserved
- Mar 5, 2026
Description
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'), Use of Password Hash With Insufficient Computational Effort vulnerability in rustdesk-client RustDesk Client rustdesk, hbb_common on Windows, MacOS, Linux (Password security module, config encryption, machine UID modules) allows Retrieve Embedded Sensitive Data. This vulnerability is associated with program files hbb_common/src/password_security.Rs, hbb_common/src/config.Rs, hbb_common/src/lib.Rs (get_uuid), machine-uid/src/lib.Rs and program routines symmetric_crypt(), encrypt_str_or_original(), decrypt_str_or_original(), get_uuid(), get_machine_id().
This issue affects RustDesk Client: through 1.4.5.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.2 High | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N | VULSec |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
RustDesk Clientrustdesk-client |
|
References
- https://github.com/rustdesk/rustdesk/discussions/9229technical-description
- https://github.com/rustdesk/rustdesk/discussions/4979technical-description
- https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pubthird-party-advisoryexploit
- https://www.vulsec.org/vdb-entrythird-party-advisory
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