VAR-202509-3845
Vulnerability from variot - Updated: 2025-10-12 23:23A security flaw has been discovered in Tenda AC21 up to 16.03.08.16. Affected by this vulnerability is the function sscanf of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be exploited. Shenzhen Tenda Technology Co.,Ltd. of ac21 The firmware contains a buffer error vulnerability and a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state
Show details on source website{
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
"affected_products": {
"@id": "https://www.variotdbs.pl/ref/affected_products"
},
"configurations": {
"@id": "https://www.variotdbs.pl/ref/configurations"
},
"credits": {
"@id": "https://www.variotdbs.pl/ref/credits"
},
"cvss": {
"@id": "https://www.variotdbs.pl/ref/cvss/"
},
"description": {
"@id": "https://www.variotdbs.pl/ref/description/"
},
"exploit_availability": {
"@id": "https://www.variotdbs.pl/ref/exploit_availability/"
},
"external_ids": {
"@id": "https://www.variotdbs.pl/ref/external_ids/"
},
"iot": {
"@id": "https://www.variotdbs.pl/ref/iot/"
},
"iot_taxonomy": {
"@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
},
"patch": {
"@id": "https://www.variotdbs.pl/ref/patch/"
},
"problemtype_data": {
"@id": "https://www.variotdbs.pl/ref/problemtype_data/"
},
"references": {
"@id": "https://www.variotdbs.pl/ref/references/"
},
"sources": {
"@id": "https://www.variotdbs.pl/ref/sources/"
},
"sources_release_date": {
"@id": "https://www.variotdbs.pl/ref/sources_release_date/"
},
"sources_update_date": {
"@id": "https://www.variotdbs.pl/ref/sources_update_date/"
},
"threat_type": {
"@id": "https://www.variotdbs.pl/ref/threat_type/"
},
"title": {
"@id": "https://www.variotdbs.pl/ref/title/"
},
"type": {
"@id": "https://www.variotdbs.pl/ref/type/"
}
},
"@id": "https://www.variotdbs.pl/vuln/VAR-202509-3845",
"affected_products": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/affected_products#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"model": "ac21",
"scope": "lte",
"trust": 1.0,
"vendor": "tenda",
"version": "16.03.08.16"
},
{
"model": "ac21",
"scope": "lte",
"trust": 0.8,
"vendor": "tenda",
"version": "ac21 firmware 16.03.08.16 and earlier"
},
{
"model": "ac21",
"scope": null,
"trust": 0.8,
"vendor": "tenda",
"version": null
},
{
"model": "ac21",
"scope": "eq",
"trust": 0.8,
"vendor": "tenda",
"version": null
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2025-015760"
},
{
"db": "NVD",
"id": "CVE-2025-11091"
}
]
},
"cve": "CVE-2025-11091",
"cvss": {
"@context": {
"cvssV2": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
},
"cvssV3": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
},
"severity": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/cvss/severity#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/severity"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"cvssV2": [
{
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"author": "cna@vuldb.com",
"availabilityImpact": "COMPLETE",
"baseScore": 9.0,
"confidentialityImpact": "COMPLETE",
"exploitabilityScore": 8.0,
"id": "CVE-2025-11091",
"impactScore": 10.0,
"integrityImpact": "COMPLETE",
"severity": "HIGH",
"trust": 1.0,
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
"version": "2.0"
},
{
"acInsufInfo": null,
"accessComplexity": "Low",
"accessVector": "Network",
"authentication": "Single",
"author": "OTHER",
"availabilityImpact": "Complete",
"baseScore": 9.0,
"confidentialityImpact": "Complete",
"exploitabilityScore": null,
"id": "JVNDB-2025-015760",
"impactScore": null,
"integrityImpact": "Complete",
"obtainAllPrivilege": null,
"obtainOtherPrivilege": null,
"obtainUserPrivilege": null,
"severity": "High",
"trust": 0.8,
"userInteractionRequired": null,
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
"version": "2.0"
}
],
"cvssV3": [
{
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"author": "cna@vuldb.com",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"exploitabilityScore": 2.8,
"id": "CVE-2025-11091",
"impactScore": 5.9,
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"trust": 1.0,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
{
"attackComplexity": "Low",
"attackVector": "Network",
"author": "OTHER",
"availabilityImpact": "High",
"baseScore": 8.8,
"baseSeverity": "High",
"confidentialityImpact": "High",
"exploitabilityScore": null,
"id": "JVNDB-2025-015760",
"impactScore": null,
"integrityImpact": "High",
"privilegesRequired": "Low",
"scope": "Unchanged",
"trust": 0.8,
"userInteraction": "None",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
}
],
"severity": [
{
"author": "cna@vuldb.com",
"id": "CVE-2025-11091",
"trust": 1.0,
"value": "High"
},
{
"author": "OTHER",
"id": "JVNDB-2025-015760",
"trust": 0.8,
"value": "High"
}
]
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2025-015760"
},
{
"db": "NVD",
"id": "CVE-2025-11091"
}
]
},
"description": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/description#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "A security flaw has been discovered in Tenda AC21 up to 16.03.08.16. Affected by this vulnerability is the function sscanf of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be exploited. Shenzhen Tenda Technology Co.,Ltd. of ac21 The firmware contains a buffer error vulnerability and a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state",
"sources": [
{
"db": "NVD",
"id": "CVE-2025-11091"
},
{
"db": "JVNDB",
"id": "JVNDB-2025-015760"
}
],
"trust": 1.62
},
"external_ids": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/external_ids#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"db": "NVD",
"id": "CVE-2025-11091",
"trust": 2.6
},
{
"db": "VULDB",
"id": "326173",
"trust": 1.8
},
{
"db": "JVNDB",
"id": "JVNDB-2025-015760",
"trust": 0.8
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2025-015760"
},
{
"db": "NVD",
"id": "CVE-2025-11091"
}
]
},
"id": "VAR-202509-3845",
"iot": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/iot#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": true,
"sources": [
{
"db": "VARIoT devices database",
"id": null
}
],
"trust": 0.55
},
"last_update_date": "2025-10-12T23:23:43.974000Z",
"problemtype_data": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"problemtype": "CWE-120",
"trust": 1.0
},
{
"problemtype": "CWE-119",
"trust": 1.0
},
{
"problemtype": "Buffer error (CWE-119) [ others ]",
"trust": 0.8
},
{
"problemtype": " Classic buffer overflow (CWE-120) [ others ]",
"trust": 0.8
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2025-015760"
},
{
"db": "NVD",
"id": "CVE-2025-11091"
}
]
},
"references": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/references#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"trust": 1.8,
"url": "https://github.com/maximdevere/cve2/issues/2"
},
{
"trust": 1.8,
"url": "https://vuldb.com/?id.326173"
},
{
"trust": 1.8,
"url": "https://vuldb.com/?submit.661806"
},
{
"trust": 1.8,
"url": "https://www.tenda.com.cn/"
},
{
"trust": 1.0,
"url": "https://vuldb.com/?ctiid.326173"
},
{
"trust": 0.8,
"url": "https://nvd.nist.gov/vuln/detail/cve-2025-11091"
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2025-015760"
},
{
"db": "NVD",
"id": "CVE-2025-11091"
}
]
},
"sources": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#",
"data": {
"@container": "@list"
}
},
"data": [
{
"db": "JVNDB",
"id": "JVNDB-2025-015760"
},
{
"db": "NVD",
"id": "CVE-2025-11091"
}
]
},
"sources_release_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2025-10-10T00:00:00",
"db": "JVNDB",
"id": "JVNDB-2025-015760"
},
{
"date": "2025-09-28T02:15:31.430000",
"db": "NVD",
"id": "CVE-2025-11091"
}
]
},
"sources_update_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2025-10-10T08:06:00",
"db": "JVNDB",
"id": "JVNDB-2025-015760"
},
{
"date": "2025-10-03T14:45:31.690000",
"db": "NVD",
"id": "CVE-2025-11091"
}
]
},
"title": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/title#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "Shenzhen\u00a0Tenda\u00a0Technology\u00a0Co.,Ltd.\u00a0 of \u00a0ac21\u00a0 Buffer error vulnerability in firmware",
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2025-015760"
}
],
"trust": 0.8
}
}
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…