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vuln-cve/data/2021/47xxx/CVE-2021-47784.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2021-47784",
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"state": "PUBLISHED",
"assignerShortName": "VulnCheck",
"dateReserved": "2026-01-14T14:39:44.737Z",
"datePublished": "2026-01-15T15:52:15.185Z",
"dateUpdated": "2026-01-15T16:39:13.224Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck",
"dateUpdated": "2026-01-15T15:52:15.185Z"
},
"datePublic": "2021-09-26T00:00:00.000Z",
"title": "Cyberfox Web Browser 52.9.1 - Denial of Service (PoC)",
"descriptions": [
{
"lang": "en",
"value": "Cyberfox Web Browser 52.9.1 contains a denial of service vulnerability that allows attackers to crash the application by overflowing the search bar with excessive data. Attackers can generate a 9,000,000 byte payload and paste it into the search bar to trigger an application crash."
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "Allocation of Resources Without Limits or Throttling",
"cweId": "CWE-770",
"type": "CWE"
}
]
}
],
"affected": [
{
"vendor": "Cyberfox",
"product": "Cyberfox Web Browser",
"versions": [
{
"version": "52.9.1 (Possibly all versions)",
"status": "affected"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "LOCAL",
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "ACTIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"references": [
{
"url": "https://www.exploit-db.com/exploits/50336",
"name": "ExploitDB-50336",
"tags": [
"exploit"
]
},
{
"url": "https://web.archive.org/web/20180906035057/https://cyberfox.8pecxstudios.com/",
"name": "Archived Cyberfox Web Browser Homepage",
"tags": [
"product"
]
}
],
"credits": [
{
"lang": "en",
"value": "Aryan Chehreghani",
"type": "finder"
}
],
"x_generator": {
"engine": "vulncheck"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-01-15T16:39:07.101704Z",
"id": "CVE-2021-47784",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-01-15T16:39:13.224Z"
}
}
]
}
}