CVE-2026-3598
Published: 05 March 2026
Summary
CVE-2026-3598 is a high-severity Use of a Broken or Risky Cryptographic Algorithm (CWE-327) vulnerability in Rustdesk Rustdesk Server. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 6.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Contacts with security groups provide timely information on broken or risky cryptographic algorithms, reducing the likelihood of their selection and use.
Ongoing education and sharing of recommended practices helps organizations identify and migrate away from broken or risky cryptographic algorithms.
Cross-organization threat feeds commonly include advances in cryptanalysis and active exploits against weak or broken algorithms, allowing organizations to deprecate them proactively.
Capital planning and funding allow selection and ongoing support of strong cryptographic algorithms rather than weak or broken ones.
Risk updates surface newly-broken or risky cryptographic algorithms as threat intelligence and computing advances evolve, enabling timely replacement.
Scanners flag use of broken or weak cryptographic algorithms via known-vulnerability databases.
Enforces approved cryptographic algorithms for each use case, blocking use of broken or risky algorithms.
Flaw remediation replaces broken or risky cryptographic algorithms once safer implementations are released by vendors.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Remote unauthenticated exploit of public-facing server (web console/export) due to broken crypto directly enables retrieval of embedded credentials from config data.
NVD Description
Use of a Broken or Risky Cryptographic Algorithm vulnerability in rustdesk-server-pro RustDesk Server Pro rustdesk-server-pro on Windows, MacOS, Linux (Config string generation, web console export modules) allows Retrieve Embedded Sensitive Data. This vulnerability is associated with program routines Config export/generation…
more
routines. This issue affects RustDesk Server Pro: through 1.7.5.
Deeper analysisAI
CVE-2026-3598 is a Use of a Broken or Risky Cryptographic Algorithm vulnerability (CWE-327, CWE-684) in the rustdesk-server-pro component of RustDesk Server Pro, affecting versions through 1.7.5 on Windows, macOS, and Linux. The issue resides in the config string generation and web console export modules, where flawed cryptographic routines enable the retrieval of embedded sensitive data.
The vulnerability carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), indicating it is exploitable over the network with low complexity, no privileges or user interaction required. Remote attackers without authentication can retrieve highly sensitive configuration data exported or generated by the affected modules, potentially exposing credentials or other secrets.
Mitigation details and further advisories are available in the referenced publications, including a Google Docs advisory at https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub, RustDesk client documentation at https://rustdesk.com/docs/en/client/, and Vulsec at https://www.vulsec.org/. The vulnerability was published on 2026-03-05.
Details
- CWE(s)