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CVE-2026-30785— RustDesk Encrypts Local Passwords with World-Readable Machine ID and Fixed Zero Nonce (XSalsa20-Poly1305)

Quick assessment

Affected
rustdesk-client RustDesk Client
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

RustDesk是RustDesk个人开发者的一款远程访问和远程控制软件，主要由 Rust 编写，可以远程维护计算机和其他设备。 RustDesk 1.4.5及之前版本存在安全漏洞，该漏洞源于对象原型属性修改控制不当和密码哈希计算强度不足，可能导致检索嵌入式敏感数据。

AI Predicted 7.5 Difficulty: Easy EPSS 0.16% · P5
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I. Basic Information for CVE-2026-30785

Vulnerability Information
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Vulnerability Title
RustDesk Encrypts Local Passwords with World-Readable Machine ID and Fixed Zero Nonce (XSalsa20-Poly1305)
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
以可恢复格式存储口令
Source: CVE Program / CVE List V5
Vulnerability Title
RustDesk 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RustDesk是RustDesk个人开发者的一款远程访问和远程控制软件，主要由 Rust 编写，可以远程维护计算机和其他设备。 RustDesk 1.4.5及之前版本存在安全漏洞，该漏洞源于对象原型属性修改控制不当和密码哈希计算强度不足，可能导致检索嵌入式敏感数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
rustdesk-client RustDesk Client 0 ~ 1.4.5 -

II. Public POCs for CVE-2026-30785

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III. Intelligence Information for CVE-2026-30785

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Vendor Advisories for CVE-2026-30785 (1)

Proof of Concept for CVE-2026-30785 (1)

Security Blog Posts for CVE-2026-30785 (2)

Same Patch Batch · rustdesk-client · 2026-03-05 · 10 CVEs total

CVE-2026-30791 RustDesk Client Accepts Pseudo-Encrypted Config Strings Without Cryptographic Validation
CVE-2026-30789 RustDesk Auth Proof Uses Server-Controlled Salt/Challenge and Fast Double-SHA256, Enabling
CVE-2026-30797 RustDesk rustdesk://config/ URI Silently Re-homes Client to Attacker-Controlled Server
CVE-2026-30798 RustDesk Client Accepts Unauthenticated stop-service Command via Strategy Payload
CVE-2026-30793 RustDesk Flutter URI Handler Sets Permanent Password Without Privilege Check or User Confi
CVE-2026-30796 RustDesk Client Transmits Preset Address Book Password Verbatim in Heartbeat Sync
CVE-2026-30792 RustDesk Client Blindly Merges Unauthenticated Strategy Payloads, Bypassing Local Security
CVE-2026-30795 RustDesk HTTP Client Silently Accepts Invalid TLS Certificates After Handshake Failure
CVE-2026-30783 RustDesk Client Can Orphan API Channel to Ignore All Admin Commands and ACL Policies

IV. Related Vulnerabilities

Same product: RustDesk Client
Same vendor: rustdesk-client
Same weakness: CWE-257

V. Comments for CVE-2026-30785

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