CVE-2026-30783

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: HIGH) published 2026-03-05. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android, WebClient (Client signaling, API sync loop, config management modules) allows Privilege Abuse.

This vulnerability is associated with program files src/rendezvous_mediator.Rs, src/hbbs_http/sync.Rs and program routines API sync loop, api-server config handling.

This issue affects RustDesk Client: through 1.4.8.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
60(Track*)
EG Risk 60/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

March 5, 2026

Last Modified

June 22, 2026

Advisory Details (3)

Auto-updated Aug 22, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

VULSec Labs

https://www.vulsec.org/
generic

RustDesk Client – RustDesk Documentation

https://rustdesk.com/docs/en/client/
generic🟡 PoC Available

RustDesk Details and PoC's

https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 69× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 127 total refreshes for this CVE.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-24 14:17 UTCEPSS rescore
  3. 2026-08-23 00:19 UTCEPSS rescore
  4. 2026-08-21 23:49 UTCEPSS rescore
  5. 2026-08-20 22:55 UTCEPSS rescore
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-18 13:48 UTCEPSS rescore
  9. 2026-08-17 13:47 UTCEPSS rescore
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 12:26 UTCEG score recompute
  12. 2026-08-16 12:26 UTCGHSA enrichment
  13. 2026-08-16 02:14 UTCEPSS rescore
  14. 2026-08-15 01:30 UTCEPSS rescore
  15. 2026-08-15 00:30 UTCGHSA enrichment
  16. 2026-08-14 20:49 UTCGHSA enrichment
  17. 2026-08-14 15:45 UTCGHSA enrichment
  18. 2026-08-14 12:04 UTCGHSA enrichment
  19. 2026-08-14 08:23 UTCEG score recompute
  20. 2026-08-14 08:23 UTCGHSA enrichment
  21. 2026-08-13 22:00 UTCEPSS rescore
  22. 2026-08-13 03:39 UTCGHSA enrichment
  23. 2026-08-12 23:59 UTCEG score recompute
  24. 2026-08-12 23:59 UTCGHSA enrichment
  25. 2026-08-12 13:50 UTCEPSS rescore
Show 75 more
  1. 2026-08-11 22:59 UTCEG score recompute
  2. 2026-08-11 22:59 UTCGHSA enrichment
  3. 2026-08-11 09:14 UTCGHSA enrichment
  4. 2026-08-11 05:30 UTCEG score recompute
  5. 2026-08-11 05:30 UTCGHSA enrichment
  6. 2026-08-11 00:00 UTCEPSS rescore
  7. 2026-08-10 13:01 UTCGHSA enrichment
  8. 2026-08-10 08:19 UTCGHSA enrichment
  9. 2026-08-10 04:36 UTCGHSA enrichment
  10. 2026-08-10 00:47 UTCGHSA enrichment
  11. 2026-08-09 21:05 UTCGHSA enrichment
  12. 2026-08-09 17:25 UTCEG score recompute
  13. 2026-08-09 17:25 UTCGHSA enrichment
  14. 2026-08-09 13:46 UTCEPSS rescore
  15. 2026-08-09 13:36 UTCGHSA enrichment
  16. 2026-08-09 08:02 UTCEG score recompute
  17. 2026-08-09 08:02 UTCGHSA enrichment
  18. 2026-08-08 16:37 UTCEPSS rescore
  19. 2026-08-08 10:27 UTCGHSA enrichment
  20. 2026-08-08 06:46 UTCGHSA enrichment
  21. 2026-08-08 03:05 UTCGHSA enrichment
  22. 2026-08-07 23:24 UTCGHSA enrichment
  23. 2026-08-07 19:43 UTCEG score recompute
  24. 2026-08-07 19:43 UTCGHSA enrichment
  25. 2026-08-06 13:46 UTCEPSS rescore
  26. 2026-08-06 06:12 UTCGHSA enrichment
  27. 2026-08-06 02:31 UTCEG score recompute
  28. 2026-08-06 02:31 UTCGHSA enrichment
  29. 2026-08-05 19:17 UTCEPSS rescore
  30. 2026-08-04 15:10 UTCEPSS rescore
  31. 2026-08-04 05:53 UTCGHSA enrichment
  32. 2026-08-04 02:12 UTCEG score recompute
  33. 2026-08-04 02:12 UTCGHSA enrichment
  34. 2026-08-03 10:36 UTCEPSS rescore
  35. 2026-08-03 02:28 UTCGHSA enrichment
  36. 2026-08-02 22:25 UTCGHSA enrichment
  37. 2026-08-02 18:44 UTCEG score recompute
  38. 2026-08-02 18:43 UTCGHSA enrichment
  39. 2026-08-02 02:26 UTCEPSS rescore
  40. 2026-08-01 04:16 UTCEPSS rescore
  41. 2026-07-30 16:27 UTCEPSS rescore
  42. 2026-07-30 01:30 UTCEPSS rescore
  43. 2026-07-29 00:47 UTCOSV refresh
  44. 2026-07-28 15:36 UTCEPSS rescore
  45. 2026-07-26 14:54 UTCEPSS rescore
  46. 2026-07-26 14:54 UTCEPSS rescore
  47. 2026-07-25 14:18 UTCEPSS rescore
  48. 2026-07-25 14:17 UTCEPSS rescore
  49. 2026-07-24 14:17 UTCEPSS rescore
  50. 2026-07-23 14:18 UTCEPSS rescore
  51. 2026-07-23 14:18 UTCEPSS rescore
  52. 2026-07-23 03:08 UTCEG score recompute
  53. 2026-07-22 14:08 UTCEPSS rescore
  54. 2026-07-22 14:08 UTCEPSS rescore
  55. 2026-07-21 15:24 UTCEPSS rescore
  56. 2026-07-21 15:24 UTCEPSS rescore
  57. 2026-07-20 17:08 UTCEPSS rescore
  58. 2026-07-20 17:08 UTCEPSS rescore
  59. 2026-07-19 14:31 UTCEPSS rescore
  60. 2026-07-19 14:31 UTCEPSS rescore
  61. 2026-07-19 02:29 UTCEPSS rescore
  62. 2026-07-18 10:04 UTCEPSS rescore
  63. 2026-07-18 10:04 UTCEPSS rescore
  64. 2026-07-16 17:03 UTCEPSS rescore
  65. 2026-07-16 17:03 UTCEPSS rescore
  66. 2026-07-15 16:57 UTCEPSS rescore
  67. 2026-07-15 16:57 UTCEPSS rescore
  68. 2026-07-15 02:00 UTCEPSS rescore
  69. 2026-07-15 02:00 UTCEPSS rescore
  70. 2026-07-13 22:30 UTCEPSS rescore
  71. 2026-07-13 06:13 UTCEPSS rescore
  72. 2026-07-13 06:13 UTCEPSS rescore
  73. 2026-07-12 05:46 UTCEPSS rescore
  74. 2026-07-11 17:22 UTCOSV refresh
  75. 2026-07-11 08:27 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-30783?
CVE-2026-30783 is a critical vulnerability published on March 5, 2026. A vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android, WebClient (Client signaling, API sync loop, config management modules) allows Privilege Abuse. This vulnerability is associated with program files src/rendezvousmediator.Rs,…
When was CVE-2026-30783 disclosed?
CVE-2026-30783 was first published in the National Vulnerability Database on March 5, 2026, with the most recent update on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-30783 actively exploited?
CVE-2026-30783 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 69.6% of all scored CVEs.
What is the CVSS score of CVE-2026-30783?
CVE-2026-30783 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-30783?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-30783, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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