CVE-2026-57850

HIGHPre-NVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

Score 8.3 from GitHub Security Advisory (severity: HIGH) published 2026-07-10. a secondary CVSS source baseline 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.3Exploit: Elevated riskExposed: 0

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

RustDesk before 1.4.9 does not enforce a session's authorized connection scope on the server side, so a peer granted a limited session type (FileTransfer, PortForward, ViewCamera, or Terminal) can send control messages and login options reserved for a full Remote session. An authenticated remote peer can exploit this missing scope check to act outside its granted scope, injecting out-of-scope control messages to observe and control the host beyond the permissions it was given.

CVSS v3
8.3
EG Score
8.3(medium)
EG Risk
53(Track*)
EG Risk 53/100SSVC: 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
Severity83% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

July 10, 2026

Last Modified

August 11, 2026

Advisory Details (4)

Auto-updated Jul 10, 2026
Patch available. Sources: github_commit, github_pr, github_release.
github_release Patch Available

1.4.9

Patch available: rustdesk/rustdesk 1.4.9

https://github.com/rustdesk/rustdesk/releases/tag/1.4.9
github_pr

Fix/session scope permission audit

Fix merged in rustdesk/rustdesk PR #15469 on 2026-07-05 — awaiting tagged release

https://github.com/rustdesk/rustdesk/pull/15469
github_commit

commit 493b14ba78ab (rustdesk/rustdesk)

Fix landed in rustdesk/rustdesk commit 493b14ba78ab — awaiting tagged release

https://github.com/rustdesk/rustdesk/commit/493b14ba78abc3dfb33f109c7f93c1c95a1dabc4
generic

GitHub - rustdesk/rustdesk: An open-source remote desktop application designed for self-hosting, as an alternative to TeamViewer. · GitHub

https://github.com/rustdesk/rustdesk

Vendor Advisories for CVE-2026-57850(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 19× in last 7d / 110× 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 174 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-57850?
CVE-2026-57850 is a high vulnerability published on July 10, 2026. RustDesk before 1.4.9 does not enforce a session's authorized connection scope on the server side, so a peer granted a limited session type (FileTransfer, PortForward, ViewCamera, or Terminal) can send control messages and login options reserved for a full Remote session. An authenticated remote…
When was CVE-2026-57850 disclosed?
CVE-2026-57850 was first published in the National Vulnerability Database on July 10, 2026, with the most recent update on August 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57850 actively exploited?
CVE-2026-57850 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 59.4% of all scored CVEs.
What is the CVSS score of CVE-2026-57850?
CVE-2026-57850 has a CVSS v3 base score of 8.3 (NVD).
How do I remediate CVE-2026-57850?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57850, 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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