Vulnerability-Lookup

CVE-2026-109390 (GCVE-0-2026-109390)

Vulnerability from cvelistv5 – Published: 2026-10-12 14:40 – Updated: 2026-10-13 03:55

Summary

AnyDesk before 8.0.3 allows unauthenticated remote attackers to execute arbitrary code via a heap-based buffer overflow, as demonstrated on Linux for command execution as root without the victim approving desktop control. In the stream packet handler for mode 5 in the session protocol, a payload length value is not validated.

Severity

9.8 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-12 00:00 UTC

CWE

CWE-130 - Improper Handling of Length Parameter Inconsistency

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2291 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/v12-security/pocs/tree/main/anydesk
https://anydesk.com/en/changelog/linux

Impacted products

1 product

Vendor	Product	Version	CPE status
AnyDesk	AnyDesk	Affected: 8.0.0 , < 8.0.3 (semver) cpe:2.3:a:anydesk:anydesk::::::::

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-109390

Vulnerability from fkie_nvd - Published: 2026-10-12 15:17 - Updated: 2026-10-12 15:17

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	cve@mitre.org	https://anydesk.com/en/changelog/linux
	cve@mitre.org	https://github.com/v12-security/pocs/tree/main/anydesk
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/v12-security/pocs/tree/main/anydesk

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Linux"
          ],
          "product": "AnyDesk",
          "vendor": "AnyDesk",
          "versions": [
            {
              "lessThan": "8.0.3",
              "status": "affected",
              "version": "8.0.0",
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    }
  ],
  "id": "CVE-2026-109390",
  "lastModified": "2026-10-12T15:17:07.980",
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GHSA-P2JV-FPMF-JQJW

Vulnerability from github – Published: 2026-10-12 15:32 – Updated: 2026-10-12 15:32

Details

Severity

9.8 (Critical)


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

Show details on source website

JSON

To clipboard

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  "affected": [],
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  ],
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    "severity": "CRITICAL"
  },
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  "id": "GHSA-p2jv-fpmf-jqjw",
  "modified": "2026-10-12T15:32:22Z",
  "published": "2026-10-12T15:32:22Z",
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      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109390"
    },
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      "url": "https://anydesk.com/en/changelog/linux"
    },
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      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CVE-2026-109390 (GCVE-0-2026-109390)

FKIE_CVE-2026-109390

GHSA-P2JV-FPMF-JQJW

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour