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vuln-cve/data/2026/12xxx/CVE-2026-12308.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-12308",
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"state": "PUBLISHED",
"assignerShortName": "mozilla",
"dateReserved": "2026-06-15T15:08:13.863Z",
"datePublished": "2026-06-16T11:52:41.775Z",
"dateUpdated": "2026-10-21T13:50:02.287Z"
},
"containers": {
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"status": "unaffected",
"version": "140.12",
"lessThanOrEqual": "140.*",
"versionType": "rpm"
},
{
"status": "unaffected",
"version": "152",
"lessThanOrEqual": "*",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"status": "unaffected",
"version": "140.12",
"lessThanOrEqual": "140.*",
"versionType": "rpm"
},
{
"status": "unaffected",
"version": "152",
"lessThanOrEqual": "*",
"versionType": "rpm"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.",
"supportingMedia": [
{
"type": "text/html",
"base64": false,
"value": "Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12."
}
]
}
],
"title": "Memory safety bug fixed in Thunderbird 152",
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2038302"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-57/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-58/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-60/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-61/"
}
],
"credits": [
{
"lang": "en",
"value": "Mihalis Haatainen"
}
],
"providerMetadata": {
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla",
"dateUpdated": "2026-10-21T13:50:02.287Z"
}
},
"adp": [
{
"problemTypes": [
{
"descriptions": [
{
"type": "CWE",
"cweId": "CWE-119",
"lang": "en",
"description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
}
},
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-06-16T17:39:05.267849Z",
"id": "CVE-2026-12308",
"options": [
{
"Exploitation": "none"
},
{
"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": "2026-06-16T17:39:09.531Z"
}
}
]
}
}