CVE-2026-6764
Full vulnerability record from the local CVENow database.
Description
Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Severity
MEDIUM
CVSS score
6.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-21 13:16:22.313000
Last modified
2026-10-26 21:10:00.170000
View original CVE JSON
{
"id": "CVE-2026-6764",
"sourceIdentifier": "[email protected]",
"published": "2026-04-21T13:16:22.313",
"lastModified": "2026-10-26T21:10:00.170",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10."
},
{
"lang": "es",
"value": "Condiciones de contorno incorrectas en el componente DOM: Interfaces de Dispositivo. Esta vulnerabilidad se corrigió en Firefox 150, Firefox ESR 140.10, Thunderbird 150 y Thunderbird 140.10."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Mozilla",
"product": "Firefox",
"versions": [
{
"version": "140.10",
"lessThanOrEqual": "140.*",
"versionType": "rpm",
"status": "unaffected"
},
{
"version": "150",
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"versionType": "rpm",
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}
]
},
{
"vendor": "Mozilla",
"product": "Thunderbird",
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{
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"versionType": "rpm",
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},
{
"version": "150",
"lessThanOrEqual": "*",
"versionType": "rpm",
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}
]
}
]
}
],
"metrics": {
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"cvssData": {
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 3.9,
"impactScore": 2.5
}
],
"ssvcV203": [
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"id": "CVE-2026-6764",
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"automatable": "yes"
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"role": "CISA Coordinator",
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"configurations": [
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"cpeMatch": [
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"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2022162",
"source": "[email protected]",
"tags": [
"Permissions Required"
]
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-30/",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
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},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-32/",
"source": "[email protected]",
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{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-33/",
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}