Vulnerability-Lookup

GHSA-VCQ6-MMFW-5XM3

Vulnerability from github – Published: 2026-03-31 21:31 – Updated: 2026-03-31 21:31

Details

The MAVLink communication protocol does not require cryptographic authentication by default. When MAVLink 2.0 message signing is not enabled, any message -- including SERIAL_CONTROL, which provides interactive shell access -- can be sent by an unauthenticated party with access to the MAVLink interface. PX4 provides MAVLink 2.0 message signing as the cryptographic authentication mechanism for all MAVLink communication. When signing is enabled, unsigned messages are rejected at the protocol level.

Severity ?

9.8 (Critical)


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

9.3 (Critical)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-1579"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-306"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-31T21:16:27Z",
    "severity": "CRITICAL"
  },
  "details": "The MAVLink communication protocol does not require cryptographic \nauthentication by default. When MAVLink 2.0 message signing is not \nenabled, any message -- including SERIAL_CONTROL, which provides \ninteractive shell access -- can be sent by an unauthenticated party with\n access to the MAVLink interface. PX4 provides MAVLink 2.0 message \nsigning as the cryptographic authentication mechanism for all MAVLink \ncommunication. When signing is enabled, unsigned messages are rejected \nat the protocol level.",
  "id": "GHSA-vcq6-mmfw-5xm3",
  "modified": "2026-03-31T21:31:19Z",
  "published": "2026-03-31T21:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1579"
    },
    {
      "type": "WEB",
      "url": "https://docs.px4.io/main/en/mavlink/message_signing"
    },
    {
      "type": "WEB",
      "url": "https://docs.px4.io/main/en/mavlink/security_hardening"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-090-02.json"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-090-02"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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-2026-1579 (GCVE-0-2026-1579)

Vulnerability from cvelistv5 – Published: 2026-03-31 20:20 – Updated: 2026-03-31 20:36

Title

PX4 Autopilot Missing authentication for critical function

Summary

Severity ?

9.3 (Critical)


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

9.8 (Critical)


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

CWE

CWE-306

Assigner

icscert

References

URL

Tags

	https://docs.px4.io/main/en/mavlink/security_hardening
	https://docs.px4.io/main/en/mavlink/message_signing
	https://www.cisa.gov/news-events/ics-advisories/i…
	https://github.com/cisagov/CSAF/blob/develop/csaf…

Impacted products

	Vendor	Product	Version
	PX4	Autopilot	Affected: v1.16.0 SITL

Credits

Dolev Aviv of Cyviation reported this vulnerability to CISA.

Show details on NVD website

JSON

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                  },
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                "timestamp": "2026-03-31T20:35:56.040324Z",
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            }
          ],
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        }
      ],
      "metrics": [
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            "Automatable": "NOT_DEFINED",
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        "orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
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              "type": "text/html",
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        }
      ],
      "source": {
        "advisory": "ICSA-26-090-02",
        "discovery": "EXTERNAL"
      },
      "title": "PX4 Autopilot Missing authentication for critical function",
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Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-VCQ6-MMFW-5XM3

CVE-2026-1579 (GCVE-0-2026-1579)

Tags

Sightings

Nomenclature