CVE-2025-10527
Full vulnerability record from the local CVENow database.
Description
Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
Severity
HIGH
CVSS score
7.1
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2025-09-16 13:15:44.457000
Last modified
2026-10-23 22:10:00.160000
View original CVE JSON
{
"id": "CVE-2025-10527",
"sourceIdentifier": "[email protected]",
"published": "2025-09-16T13:15:44.457",
"lastModified": "2026-10-23T22:10:00.160",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3."
},
{
"lang": "es",
"value": "Escape de sandbox debido a uso después de liberación en el componente Graphics: Canvas2D. Esta vulnerabilidad afecta a Firefox < 143, Firefox ESR anterior a 140.3, Thunderbird < 143, y Thunderbird anterior a 140.3."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Mozilla",
"product": "Firefox",
"versions": [
{
"version": "140.3",
"lessThanOrEqual": "140.*",
"versionType": "rpm",
"status": "unaffected"
},
{
"version": "143",
"lessThanOrEqual": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Mozilla",
"product": "Thunderbird",
"versions": [
{
"version": "140.3",
"lessThanOrEqual": "140.*",
"versionType": "rpm",
"status": "unaffected"
},
{
"version": "143",
"lessThanOrEqual": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "CHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 2.8,
"impactScore": 3.7
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2025-09-16T13:30:33.580712Z",
"id": "CVE-2025-10527",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
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"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
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"matchCriteriaId": "277CA9C0-BD77-46D8-8191-F54598F7F47B"
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],
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1984825",
"source": "[email protected]",
"tags": [
"Broken Link"
]
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-73/",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-75/",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
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},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-77/",
"source": "[email protected]",
"tags": [
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},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-78/",
"source": "[email protected]",
"tags": [
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]
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/09/msg00020.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
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"url": "https://lists.debian.org/debian-lts-announce/2025/09/msg00026.html",
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]
}