CVE-2025-26409 (GCVE-0-2025-26409)
Vulnerability from cvelistv5 – Published: 2025-02-11 09:15 – Updated: 2025-11-03 21:12
VLAI?
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)
CWE
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"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"
}
},
{
"other": {
"content": {
"id": "CVE-2025-26409",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-11T14:38:08.176508Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1299",
"description": "CWE-1299 Missing Protection Mechanism for Alternate Hardware Interface",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-03-17T16:40:45.172Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-11-03T21:12:51.730Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://seclists.org/fulldisclosure/2025/Feb/9"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Wattsense Bridge",
"vendor": "Wattsense",
"versions": [
{
"lessThan": "6.4.1",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Constantin Schieber-Kn\u00f6bl | SEC Consult Vulnerability Lab"
},
{
"lang": "en",
"type": "finder",
"value": "Stefan Schweighofer | SEC Consult Vulnerability Lab"
},
{
"lang": "en",
"type": "finder",
"value": "Steffen Robertz | SEC Consult Vulnerability Lab"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"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\u0026nbsp;recent firmware versions BSP \u0026gt;= 6.4.1."
}
],
"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."
}
],
"impacts": [
{
"capecId": "CAPEC-180",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-180 Exploiting Incorrectly Configured Access Control Security Levels"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1299",
"description": "CWE-1299 Missing Protection Mechanism for Alternate Hardware Interface",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-1191",
"description": "CWE-1191 On-Chip Debug and Test Interface With Improper Access Control",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-02-11T09:15:30.131Z",
"orgId": "551230f0-3615-47bd-b7cc-93e92e730bbf",
"shortName": "SEC-VLab"
},
"references": [
{
"tags": [
"third-party-advisory"
],
"url": "https://r.sec-consult.com/wattsense"
},
{
"tags": [
"release-notes"
],
"url": "https://support.wattsense.com/hc/en-150/articles/13366066529437-Release-Notes"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "This issue is fixed in recent firmware versions BSP \u0026gt;= 6.4.1."
}
],
"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",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "551230f0-3615-47bd-b7cc-93e92e730bbf",
"assignerShortName": "SEC-VLab",
"cveId": "CVE-2025-26409",
"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": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-26409\",\"sourceIdentifier\":\"551230f0-3615-47bd-b7cc-93e92e730bbf\",\"published\":\"2025-02-11T10:15:09.743\",\"lastModified\":\"2025-11-03T22:18:41.310\",\"vulnStatus\":\"Awaiting Analysis\",\"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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":6.8,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"PHYSICAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"551230f0-3615-47bd-b7cc-93e92e730bbf\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-1191\"},{\"lang\":\"en\",\"value\":\"CWE-1299\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-1299\"}]}],\"references\":[{\"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\":\"551230f0-3615-47bd-b7cc-93e92e730bbf\"},{\"url\":\"http://seclists.org/fulldisclosure/2025/Feb/9\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://seclists.org/fulldisclosure/2025/Feb/9\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T21:12:51.730Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.8, \"attackVector\": \"PHYSICAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-26409\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-11T14:38:08.176508Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1299\", \"description\": \"CWE-1299 Missing Protection Mechanism for Alternate Hardware Interface\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-11T14:38:50.624Z\"}}], \"cna\": {\"title\": \"Access to Bootloader and Shell Over Serial Interface\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Constantin Schieber-Kn\\u00f6bl | SEC Consult Vulnerability Lab\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Stefan Schweighofer | SEC Consult Vulnerability Lab\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Steffen Robertz | SEC Consult Vulnerability Lab\"}], \"impacts\": [{\"capecId\": \"CAPEC-180\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-180 Exploiting Incorrectly Configured Access Control Security Levels\"}]}], \"affected\": [{\"vendor\": \"Wattsense\", \"product\": \"Wattsense Bridge\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"6.4.1\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"This issue is fixed in recent firmware versions BSP \u003e= 6.4.1.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"This issue is fixed in recent firmware versions BSP \u0026gt;= 6.4.1.\", \"base64\": false}]}], \"references\": [{\"url\": \"https://r.sec-consult.com/wattsense\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://support.wattsense.com/hc/en-150/articles/13366066529437-Release-Notes\", \"tags\": [\"release-notes\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.2.0\"}, \"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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"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\u0026nbsp;recent firmware versions BSP \u0026gt;= 6.4.1.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1299\", \"description\": \"CWE-1299 Missing Protection Mechanism for Alternate Hardware Interface\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1191\", \"description\": \"CWE-1191 On-Chip Debug and Test Interface With Improper Access Control\"}]}], \"providerMetadata\": {\"orgId\": \"551230f0-3615-47bd-b7cc-93e92e730bbf\", \"shortName\": \"SEC-VLab\", \"dateUpdated\": \"2025-02-11T09:15:30.131Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-26409\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T21:12:51.730Z\", \"dateReserved\": \"2025-02-10T07:48:38.352Z\", \"assignerOrgId\": \"551230f0-3615-47bd-b7cc-93e92e730bbf\", \"datePublished\": \"2025-02-11T09:15:30.131Z\", \"assignerShortName\": \"SEC-VLab\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
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.
Loading…
Loading…