Vulnerability-Lookup

CVE-2025-26409 (GCVE-0-2025-26409)

Vulnerability from cvelistv5 – Published: 2025-02-11 09:15 – Updated: 2025-11-03 21:12

Title

Access to Bootloader and Shell Over Serial Interface

Summary

A serial interface can be accessed with physical access to the PCB of Wattsense Bridge devices. After connecting to the interface, access to the bootloader is possible, as well as a Linux login prompt. The bootloader access can be used to gain a root shell on the device. This issue is fixed in recent firmware versions BSP >= 6.4.1.

Severity ?

6.8 (Medium)


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

CWE

CWE-1299 - Missing Protection Mechanism for Alternate Hardware Interface
CWE-1191 - On-Chip Debug and Test Interface With Improper Access Control

Assigner

SEC-VLab

References

URL

Tags

	https://r.sec-consult.com/wattsense	third-party-advisory
	https://support.wattsense.com/hc/en-150/articles/…	release-notes

Impacted products

	Vendor	Product	Version
	Wattsense	Wattsense Bridge	Affected: 0 , < 6.4.1 (custom)

Credits

Constantin Schieber-Knöbl | SEC Consult Vulnerability Lab Stefan Schweighofer | SEC Consult Vulnerability Lab Steffen Robertz | SEC Consult Vulnerability Lab

Show details on NVD website

JSON

To clipboard

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              "confidentialityImpact": "HIGH",
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          "dateUpdated": "2025-03-17T16:40:45.172Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        }
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        }
      ],
      "impacts": [
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            }
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      "problemTypes": [
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      "providerMetadata": {
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          "url": "https://support.wattsense.com/hc/en-150/articles/13366066529437-Release-Notes"
        }
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      "solutions": [
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          "supportingMedia": [
            {
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              "type": "text/html",
              "value": "This issue is fixed in recent firmware versions BSP \u0026gt;= 6.4.1."
            }
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          "value": "This issue is fixed in recent firmware versions BSP \u003e= 6.4.1."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Access to Bootloader and Shell Over Serial Interface",
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        "engine": "Vulnogram 0.2.0"
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    "datePublished": "2025-02-11T09:15:30.131Z",
    "dateReserved": "2025-02-10T07:48:38.352Z",
    "dateUpdated": "2025-11-03T21:12:51.730Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
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FKIE_CVE-2025-26409

Vulnerability from fkie_nvd - Published: 2025-02-11 10:15 - Updated: 2025-11-03 22:18

Severity ?

6.8 (Medium) - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	551230f0-3615-47bd-b7cc-93e92e730bbf	https://r.sec-consult.com/wattsense
	551230f0-3615-47bd-b7cc-93e92e730bbf	https://support.wattsense.com/hc/en-150/articles/13366066529437-Release-Notes
	af854a3a-2127-422b-91ae-364da2661108	http://seclists.org/fulldisclosure/2025/Feb/9

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A serial interface can be accessed with physical access to the PCB of Wattsense Bridge devices. After connecting to the interface, access to the bootloader is possible, as well as a Linux login prompt. The bootloader access can be used to gain a root shell on the device. This issue is fixed in\u00a0recent firmware versions BSP \u003e= 6.4.1."
    },
    {
      "lang": "es",
      "value": "Se puede acceder a una interfaz serial con acceso f\u00edsico a la PCB de los dispositivos Wattsense Bridge. Despu\u00e9s de conectarse a la interfaz, es posible acceder al gestor de arranque, as\u00ed como a un mensaje de inicio de sesi\u00f3n de Linux. El acceso al gestor de arranque se puede utilizar para obtener un shell ra\u00edz en el dispositivo. Este problema se ha solucionado en las versiones de firmware recientes BSP \u0026gt;= 6.4.1."
    }
  ],
  "id": "CVE-2025-26409",
  "lastModified": "2025-11-03T22:18:41.310",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "PHYSICAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 0.9,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-02-11T10:15:09.743",
  "references": [
    {
      "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
      "url": "https://r.sec-consult.com/wattsense"
    },
    {
      "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
      "url": "https://support.wattsense.com/hc/en-150/articles/13366066529437-Release-Notes"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://seclists.org/fulldisclosure/2025/Feb/9"
    }
  ],
  "sourceIdentifier": "551230f0-3615-47bd-b7cc-93e92e730bbf",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1191"
        },
        {
          "lang": "en",
          "value": "CWE-1299"
        }
      ],
      "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1299"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

GHSA-9CMP-PPM3-HP8W

Vulnerability from github – Published: 2025-02-11 12:30 – Updated: 2025-11-04 00:32

Details

Severity ?

6.8 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-26409"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1191",
      "CWE-1299"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-11T10:15:09Z",
    "severity": "MODERATE"
  },
  "details": "A serial interface can be accessed with physical access to the PCB of Wattsense Bridge devices. After connecting to the interface, access to the bootloader is possible, as well as a Linux login prompt. The bootloader access can be used to gain a root shell on the device. This issue is fixed in\u00a0recent firmware versions BSP \u003e= 6.4.1.",
  "id": "GHSA-9cmp-ppm3-hp8w",
  "modified": "2025-11-04T00:32:19Z",
  "published": "2025-02-11T12:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26409"
    },
    {
      "type": "WEB",
      "url": "https://r.sec-consult.com/wattsense"
    },
    {
      "type": "WEB",
      "url": "https://support.wattsense.com/hc/en-150/articles/13366066529437-Release-Notes"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2025/Feb/9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

CVE-2025-26409 (GCVE-0-2025-26409)

FKIE_CVE-2025-26409

GHSA-9CMP-PPM3-HP8W

Tags

Sightings

Nomenclature