CVE-2026-15511
Full vulnerability record from the local CVENow database.
Description
A vulnerability was determined in Comfast CF-WR631AX V3 up to 2.7.0.8. Affected by this vulnerability is the function system_wl_upload_pic_file of the file /usr/bin/webmgnt of the component FastCGI Backend. This manipulation of the argument filename causes os command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
HIGH
CVSS score
8.9
(v4.0)
Vulnerability status
Deferred
Source identifier
Published
2026-07-12 23:16:38.137000
Last modified
2026-10-24 22:10:00.210000
View original CVE JSON
{
"id": "CVE-2026-15511",
"sourceIdentifier": "[email protected]",
"published": "2026-07-12T23:16:38.137",
"lastModified": "2026-10-24T22:10:00.210",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
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"lang": "en",
"value": "A vulnerability was determined in Comfast CF-WR631AX V3 up to 2.7.0.8. Affected by this vulnerability is the function system_wl_upload_pic_file of the file /usr/bin/webmgnt of the component FastCGI Backend. This manipulation of the argument filename causes os command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way."
},
{
"lang": "es",
"value": "Se determinó una vulnerabilidad en Comfast CF-WR631AX V3 hasta la versión 2.7.0.8. Esta vulnerabilidad afecta a la función system_wl_upload_pic_file del archivo /usr/bin/webmgnt del componente FastCGI Backend. Esta manipulación del argumento filename provoca inyección de comandos del sistema operativo. Es posible iniciar el ataque de forma remota. El exploit ha sido divulgado públicamente y puede ser utilizado. Se contactó al proveedor con antelación sobre esta divulgación, pero no respondió de ninguna manera."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Comfast",
"product": "CF-WR631AX V3",
"cpes": [
"cpe:2.3:a:comfast:cf-wr631ax_v3:*:*:*:*:*:*:*:*"
],
"modules": [
"FastCGI Backend"
],
"versions": [
{
"version": "2.7.0.0",
"status": "affected"
},
{
"version": "2.7.0.1",
"status": "affected"
},
{
"version": "2.7.0.2",
"status": "affected"
},
{
"version": "2.7.0.3",
"status": "affected"
},
{
"version": "2.7.0.4",
"status": "affected"
},
{
"version": "2.7.0.5",
"status": "affected"
},
{
"version": "2.7.0.6",
"status": "affected"
},
{
"version": "2.7.0.7",
"status": "affected"
},
{
"version": "2.7.0.8",
"status": "affected"
}
]
}
]
}
],
"metrics": {
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"source": "[email protected]",
"type": "Secondary",
"cvssData": {
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"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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"scope": "UNCHANGED",
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"exploitabilityScore": 3.9,
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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,
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"accessComplexity": "LOW",
"authentication": "NONE",
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"availabilityImpact": "COMPLETE"
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"exploitabilityScore": 10.0,
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"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
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"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
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"id": "CVE-2026-15511",
"options": [
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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/luminarydawn/cve/tree/main/Command%20Injection%20in%20Comfast%20CF-WR631AX%20V3%20%E2%80%94%20WiFi%20Portal%20Image%20Upload%20(CWE-78)",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/cve/CVE-2026-15511",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/submit/846719",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/vuln/377840",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/vuln/377840/cti",
"source": "[email protected]"
}
]
}