Search
Find a vulnerability
Search criteria
4 vulnerabilities found for esp32_firmware by espressif
CVE-2025-27840 (GCVE-0-2025-27840)
Vulnerability from nvd – Published: 2025-03-08 00:00 – Updated: 2025-05-12 15:33
VLAI
Summary
Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 (Write memory).
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-912 - Hidden Functionality
Assigner
References
15 references
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-27840",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-03-10T15:04:13.290734Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-05-12T15:33:14.134Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "ESP32",
"vendor": "Espressif",
"versions": [
{
"status": "affected",
"version": "2025-03-06",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 (Write memory)."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-912",
"description": "CWE-912 Hidden Functionality",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-03-11T17:03:29.921Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/TarlogicSecurity/Talks/blob/main/2025_RootedCon_BluetoothTools.pdf"
},
{
"url": "https://x.com/pascal_gujer/status/1898442439704158276"
},
{
"url": "https://www.tarlogic.com/news/backdoor-esp32-chip-infect-ot-devices/"
},
{
"url": "https://www.bleepingcomputer.com/news/security/undocumented-backdoor-found-in-bluetooth-chip-used-by-a-billion-devices/"
},
{
"url": "https://reg.rootedcon.com/cfp/schedule/talk/5"
},
{
"url": "https://flyingpenguin.com/?p=67838"
},
{
"url": "https://github.com/em0gi/CVE-2025-27840"
},
{
"url": "https://github.com/orgs/espruino/discussions/7699"
},
{
"url": "https://www.bleepingcomputer.com/news/security/undocumented-commands-found-in-bluetooth-chip-used-by-a-billion-devices/"
},
{
"url": "https://darkmentor.com/blog/esp32_non-backdoor/"
},
{
"url": "https://news.ycombinator.com/item?id=43308740"
},
{
"url": "https://news.ycombinator.com/item?id=43301369"
},
{
"url": "https://github.com/esphome/esphome/discussions/8382"
},
{
"url": "https://cheriot.org/auditing/backdoor/2025/03/09/no-esp32-style-backdoor.html"
},
{
"url": "https://www.espressif.com/en/news/Response_ESP32_Bluetooth"
}
],
"x_generator": {
"engine": "enrichogram 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2025-27840",
"datePublished": "2025-03-08T00:00:00.000Z",
"dateReserved": "2025-03-08T00:00:00.000Z",
"dateUpdated": "2025-05-12T15:33:14.134Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-34173 (GCVE-0-2021-34173)
Vulnerability from nvd – Published: 2021-07-14 18:32 – Updated: 2024-08-04 00:05
VLAI
Summary
An attacker can cause a Denial of Service and kernel panic in v4.2 and earlier versions of Espressif esp32 via a malformed beacon csa frame. The device requires a reboot to recover.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/E7mer | x_refsource_MISC |
| https://github.com/E7mer/OWFuzz | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T00:05:52.463Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/E7mer"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/E7mer/OWFuzz"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An attacker can cause a Denial of Service and kernel panic in v4.2 and earlier versions of Espressif esp32 via a malformed beacon csa frame. The device requires a reboot to recover."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-07-14T18:32:54.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/E7mer"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/E7mer/OWFuzz"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-34173",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "An attacker can cause a Denial of Service and kernel panic in v4.2 and earlier versions of Espressif esp32 via a malformed beacon csa frame. The device requires a reboot to recover."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/E7mer",
"refsource": "MISC",
"url": "https://github.com/E7mer"
},
{
"name": "https://github.com/E7mer/OWFuzz",
"refsource": "MISC",
"url": "https://github.com/E7mer/OWFuzz"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-34173",
"datePublished": "2021-07-14T18:32:54.000Z",
"dateReserved": "2021-06-07T00:00:00.000Z",
"dateUpdated": "2024-08-04T00:05:52.463Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2025-27840 (GCVE-0-2025-27840)
Vulnerability from cvelistv5 – Published: 2025-03-08 00:00 – Updated: 2025-05-12 15:33
VLAI
Summary
Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 (Write memory).
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-912 - Hidden Functionality
Assigner
References
15 references
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-27840",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-03-10T15:04:13.290734Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-05-12T15:33:14.134Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "ESP32",
"vendor": "Espressif",
"versions": [
{
"status": "affected",
"version": "2025-03-06",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 (Write memory)."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-912",
"description": "CWE-912 Hidden Functionality",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-03-11T17:03:29.921Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/TarlogicSecurity/Talks/blob/main/2025_RootedCon_BluetoothTools.pdf"
},
{
"url": "https://x.com/pascal_gujer/status/1898442439704158276"
},
{
"url": "https://www.tarlogic.com/news/backdoor-esp32-chip-infect-ot-devices/"
},
{
"url": "https://www.bleepingcomputer.com/news/security/undocumented-backdoor-found-in-bluetooth-chip-used-by-a-billion-devices/"
},
{
"url": "https://reg.rootedcon.com/cfp/schedule/talk/5"
},
{
"url": "https://flyingpenguin.com/?p=67838"
},
{
"url": "https://github.com/em0gi/CVE-2025-27840"
},
{
"url": "https://github.com/orgs/espruino/discussions/7699"
},
{
"url": "https://www.bleepingcomputer.com/news/security/undocumented-commands-found-in-bluetooth-chip-used-by-a-billion-devices/"
},
{
"url": "https://darkmentor.com/blog/esp32_non-backdoor/"
},
{
"url": "https://news.ycombinator.com/item?id=43308740"
},
{
"url": "https://news.ycombinator.com/item?id=43301369"
},
{
"url": "https://github.com/esphome/esphome/discussions/8382"
},
{
"url": "https://cheriot.org/auditing/backdoor/2025/03/09/no-esp32-style-backdoor.html"
},
{
"url": "https://www.espressif.com/en/news/Response_ESP32_Bluetooth"
}
],
"x_generator": {
"engine": "enrichogram 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2025-27840",
"datePublished": "2025-03-08T00:00:00.000Z",
"dateReserved": "2025-03-08T00:00:00.000Z",
"dateUpdated": "2025-05-12T15:33:14.134Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-34173 (GCVE-0-2021-34173)
Vulnerability from cvelistv5 – Published: 2021-07-14 18:32 – Updated: 2024-08-04 00:05
VLAI
Summary
An attacker can cause a Denial of Service and kernel panic in v4.2 and earlier versions of Espressif esp32 via a malformed beacon csa frame. The device requires a reboot to recover.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/E7mer | x_refsource_MISC |
| https://github.com/E7mer/OWFuzz | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T00:05:52.463Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/E7mer"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/E7mer/OWFuzz"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An attacker can cause a Denial of Service and kernel panic in v4.2 and earlier versions of Espressif esp32 via a malformed beacon csa frame. The device requires a reboot to recover."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-07-14T18:32:54.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/E7mer"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/E7mer/OWFuzz"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-34173",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "An attacker can cause a Denial of Service and kernel panic in v4.2 and earlier versions of Espressif esp32 via a malformed beacon csa frame. The device requires a reboot to recover."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/E7mer",
"refsource": "MISC",
"url": "https://github.com/E7mer"
},
{
"name": "https://github.com/E7mer/OWFuzz",
"refsource": "MISC",
"url": "https://github.com/E7mer/OWFuzz"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-34173",
"datePublished": "2021-07-14T18:32:54.000Z",
"dateReserved": "2021-06-07T00:00:00.000Z",
"dateUpdated": "2024-08-04T00:05:52.463Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}