CVE-2026-30789CRITICAL 9.8EPSS p33.5%

CVE-2026-30789CVE-2026-30789

Description

Authentication Bypass by Capture-replay, Use of Password Hash With Insufficient Computational Effort vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Client login, peer authentication modules) allows Reusing Session IDs (aka Session Replay). This vulnerability is associated with program files src/client.Rs and program routines hash_password(), login proof construction. This issue affects RustDesk Client: through 1.4.5.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.42% probability of exploitation · percentile 33.5% · 2026-06-18T12:00:27Z
Published2026-03-05
Last modified2026-03-25

Underlying weaknesses· 2

CWE-294CWE-916

References

  1. https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub
  2. https://rustdesk.com/docs/en/client/
  3. https://www.vulsec.org/

2

TypeTargetConfidenceTier
WeaknessAuthentication Bypass by Capture-replaycwe-2940%live
WeaknessUse of Password Hash With Insufficient Computational Effortcwe-9160%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.