Vulnerability-Lookup

GHSA-83JC-7J6X-WVJ9

Vulnerability from github – Published: 2026-07-10 21:32 – Updated: 2026-08-11 15:32

Details

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.

Severity

8.3 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-57850"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-10T20:16:48Z",
    "severity": "HIGH"
  },
  "details": "RustDesk before 1.4.9 does not enforce a session\u0027s 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.",
  "id": "GHSA-83jc-7j6x-wvj9",
  "modified": "2026-08-11T15:32:01Z",
  "published": "2026-07-10T21:32:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57850"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rustdesk/rustdesk/pull/15469"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rustdesk/rustdesk/commit/493b14ba78abc3dfb33f109c7f93c1c95a1dabc4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rustdesk/rustdesk"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rustdesk/rustdesk/releases/tag/1.4.9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sn0x-sharma/CVE-2026-57850"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/rustdesk-missing-session-scope-enforcement-allows-out-of-scope-control-message-injection"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-57850 (GCVE-0-2026-57850)

Vulnerability from cvelistv5 – Published: 2026-07-10 19:53 – Updated: 2026-08-11 13:53

Title

RustDesk Missing Session Scope Enforcement Allows Out-of-Scope Control Message Injection

Summary

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

8.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-15 04:00 UTC

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 6697 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/rustdesk/rustdesk/pull/15469	patch
https://github.com/rustdesk/rustdesk/commit/493b1…	patch
https://github.com/rustdesk/rustdesk/releases/tag/1.4.9	release-notes
https://github.com/rustdesk/rustdesk	product
https://www.vulncheck.com/advisories/rustdesk-mis…	third-party-advisory
https://github.com/sn0x-sharma/CVE-2026-57850	technical-description

Impacted products

1 product

Vendor	Product	Version
RustDesk	RustDesk	Affected: 0 , < 1.4.9 (semver) cpe:2.3:a:rustdesk:rustdesk:::::webclient:::*

Date Public

2026-07-05 00:00

Credits

sn0x-sharma

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-57850",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-15T04:00:44.875247Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2026-07-29T19:26:45.802Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "RustDesk",
          "vendor": "RustDesk",
          "versions": [
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            }
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                {
                  "criteria": "cpe:2.3:a:rustdesk:rustdesk:*:*:*:*:webclient:*:*:*",
                  "versionEndExcluding": "1.4.9",
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      "metrics": [
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            "Recovery": "NOT_DEFINED",
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            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
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            "vulnAvailabilityImpact": "LOW",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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        {
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    "datePublished": "2026-07-10T19:53:21.336Z",
    "dateReserved": "2026-06-25T18:48:00.282Z",
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    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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