CVE-2026-7122
Full vulnerability record from the local CVENow database.
Description
A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This impacts the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument enable leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Severity
HIGH
CVSS score
8.9
(v4.0)
Vulnerability status
Deferred
Source identifier
Published
2026-04-27 12:16:26.183000
Last modified
2026-10-26 21:10:00.170000
View original CVE JSON
{
"id": "CVE-2026-7122",
"sourceIdentifier": "[email protected]",
"published": "2026-04-27T12:16:26.183",
"lastModified": "2026-10-26T21:10:00.170",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This impacts the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument enable leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used."
},
{
"lang": "es",
"value": "Se ha encontrado una vulnerabilidad en Totolink A8000RU 7.1cu.643_b20200521. Esto afecta a la función setUPnPCfg del archivo /cgi-bin/cstecgi.cgi del componente Gestor CGI. Dicha manipulación del argumento enable conduce a una inyección de comandos del sistema operativo. Es posible lanzar el ataque de forma remota. El exploit ha sido divulgado al público y puede ser utilizado."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Totolink",
"product": "A8000RU",
"cpes": [
"cpe:2.3:o:totolink:a8000ru_firmware:*:*:*:*:*:*:*:*"
],
"modules": [
"CGI Handler"
],
"versions": [
{
"version": "7.1cu.643_b20200521",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"baseScore": 8.9,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "PROOF_OF_CONCEPT",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
],
"cvssMetricV31": [
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"source": "[email protected]",
"type": "Secondary",
"cvssData": {
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
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"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
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"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9
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],
"cvssMetricV2": [
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"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "2.0",
"vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
"baseScore": 10.0,
"accessVector": "NETWORK",
"accessComplexity": "LOW",
"authentication": "NONE",
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"availabilityImpact": "COMPLETE"
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"exploitabilityScore": 10.0,
"impactScore": 10.0,
"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
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}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-04-29T13:51:11.922553Z",
"id": "CVE-2026-7122",
"options": [
{
"exploitation": "poc"
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{
"automatable": "yes"
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{
"technicalImpact": "total"
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"role": "CISA Coordinator",
"version": "2.0.3"
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},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-77"
},
{
"lang": "en",
"value": "CWE-78"
}
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}
],
"references": [
{
"url": "https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_307/README.md",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/submit/800934",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/vuln/359721",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/vuln/359721/cti",
"source": "[email protected]"
},
{
"url": "https://www.totolink.net/",
"source": "[email protected]"
}
]
}