CVE-2015-9550
Status: ModifiedHigh (7.5)—
An issue was discovered on TOTOLINK A850R-V1 through 1.0.1-B20150707.1612 and F1-V2 through 1.1-B20150708.1646 devices. By sending a specific hel,xasf packet to the WAN interface, it is possible to open the web management interface on the WAN interface.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Base score: 7.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 1.55%
- Percentile among all scored CVEs: 74
- Score date: 10/3/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (8)
CWEs
- CWE-668
References
Raw JSON (NVD)
Show
{
"id": "CVE-2015-9550",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2020-11-24T21:15:11.353",
"references": [
{
"url": "https://pierrekim.github.io/blog/2015-07-16-backdoor-and-RCE-found-in-8-TOTOLINK-products.html",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://pierrekim.github.io/blog/2015-07-16-backdoor-and-RCE-found-in-8-TOTOLINK-products.html",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-668"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered on TOTOLINK A850R-V1 through 1.0.1-B20150707.1612 and F1-V2 through 1.1-B20150708.1646 devices. By sending a specific hel,xasf packet to the WAN interface, it is possible to open the web management interface on the WAN interface."
},
{
"lang": "es",
"value": "Se detectó un problema en los dispositivos TOTOLINK A850R-V1 versiones hasta 1.0.1-B20150707.1612 y F1-V2 versiones hasta 1.1-B20150708.1646. Mediante el envío de un paquete hel,xasf específico hacia la interfaz WAN, es posible abrir la interfaz de administración web sobre la interfaz WAN"
}
],
"lastModified": "2026-06-17T00:36:45.330",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:totolink:a850r-v1_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "29DDFAFC-3538-45B5-AB36-3895F16BD764",
"versionEndExcluding": "1.0.1-b20150707.1612"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:totolink:a850r-v1:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "74953383-D90B-4B54-B02B-617BCF8010E9"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:totolink:f1-v2_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FBC80064-797F-487C-99C1-D8F4981D4990",
"versionEndExcluding": "2.1.1-b20150708.1646"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:totolink:f1-v2:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "611785C4-C11E-4F73-BB8B-DFEE66F3FB6A"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:totolink:f2-v1_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6844CA14-C66E-4E6B-ABC6-1D083EEF9D82",
"versionEndExcluding": "2.1.0-b20150320.1611"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:totolink:f2-v1:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "B693CF6C-A0C7-42DD-AA82-36887087BCED"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:totolink:n150rt-v2_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "572842ED-48C4-4D90-B107-EF6DBFC19585",
"versionEndExcluding": "2.1.1-b20150708.1548"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:totolink:n150rt-v2:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "0251C2F8-9BCC-4B34-8747-09CA39E6CE7C"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:totolink:n151rt-v2_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F7E9FE34-8EBD-47BD-AD90-F07381E0C06A",
"versionEndExcluding": "1.1-b20150708.1559"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:totolink:n151rt-v2:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "00922E42-2177-4214-8A1E-8FEB6BDE2869"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:totolink:n300rh-v2_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1D436BD3-1C39-49CE-BC15-50C890F58931",
"versionEndExcluding": "2.0.1-b20150708.1625"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:totolink:n300rh-v2:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "B0ECED9E-930D-4061-ABB4-CC2DD2346BBC"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:totolink:n300rh-v3_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3BC6C344-01DD-4EB6-B1A3-60B782E81BA4",
"versionEndExcluding": "3.0.0-b20150331.0858"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:totolink:n300rh-v3:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "058F675A-3C67-4B73-808C-8C65D7D65C12"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:totolink:n300rt-v2_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "74971352-B072-4A9A-B07E-4E92F35C716A",
"versionEndExcluding": "2.1.1-b20150708.1613"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:totolink:n300rt-v2:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "4637323A-10A8-4841-BC49-3EF2894C5F86"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cve@mitre.org"
}