RustDesk Client Accepts Pseudo-Encrypted Config Strings Without Cryptographic Validation
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-327.
Summary
Use of a Broken or Risky Cryptographic Algorithm vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android, WebClient (Config import, URI scheme handler, CLI --config modules) allows Retrieve Embedded Sensitive Data. This vulnerability is associated with program files flutter/lib/common.Dart, hbb_common/src/config.Rs and program routines parseRustdeskUri(), importConfig(). This issue affects RustDesk Client: through 1.4.5.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| rustdesk-client | RustDesk Client | up to 1.4.5 | — | No fix listed | CNA |
- RustDesk Client Vendorrustdesk-client Affected up to 1.4.5 Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:rustdesk:rustdesk:*:*:*:*:-:*:*:* | up to 1.4.5 | Vulnerable | rustdesk-client |
| cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Apple |
| cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Apple |
| cpe:2.3:o:google:android:-:*:*:*:*:*:*:* | not specified by NVD | Running on | |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:a:rustdesk:rustdesk:*:*:*:*:webclient:*:*:* | up to 1.4.5 | Vulnerable | rustdesk-client |
- cpe:2.3:a:rustdesk:rustdesk:*:*:*:*:-:*:*:* Versions up to 1.4.5 Vulnerable ·rustdesk-client
- cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
- cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
- cpe:2.3:o:google:android:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Google
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:a:rustdesk:rustdesk:*:*:*:*:webclient:*:*:* Versions up to 1.4.5 Vulnerable ·rustdesk-client
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-30791
- 2026-10-03 Alias added: GHSA-mpxj-6c39-w4rr
References
More rustdesk-client Rustdesk vulnerabilities
- TI-2024-16591 A default installation of RustDesk 1.2.3 on Windows places a WDKTestCert certificate… CVSS 3.1CRITICAL 9.8
- TI-2026-23626 RustDesk HTTP Client Silently Accepts Invalid TLS Certificates After Handshake Failure CVSS 4.0HIGH 8.7
- TI-2026-23624 RustDesk Client Blindly Merges Unauthenticated Strategy Payloads, Bypassing Local Security Settings CVSS 4.0HIGH 8.3
- TI-2026-23621 RustDesk Encrypts Local Passwords with World-Readable Machine ID and Fixed Zero Nonce (XSalsa20-Poly1305) CVSS 4.0HIGH 8.2
- TI-2026-23629 RustDesk Client Accepts Unauthenticated stop-service Command via Strategy Payload CVSS 4.0HIGH 8.2
- TI-2026-23628 RustDesk rustdesk://config/ URI Silently Re-homes Client to Attacker-Controlled Server CVSS 4.0CRITICAL 9.3
Sources
- CVE-2026-30791 · CVE Program
- CVE-2026-30791 · NVD
- FIRST EPSS
- GHSA-mpxj-6c39-w4rr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences