CVE-2024-21639
Estado: ModificadaCrítica (9.6)—
CEF (Chromium Embedded Framework ) is a simple framework for embedding Chromium-based browsers in other applications. `CefLayeredWindowUpdaterOSR::OnAllocatedSharedMemory` does not check the size of the shared memory, which leads to out-of-bounds read outside the sandbox. This vulnerability was patched in commit 1f55d2e.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H
- Puntuación base: 9.6
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.70%
- Percentil entre todas las CVEs puntuadas: 52
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-125
Referencias
- https://github.com/chromiumembedded/cef/commit/1f55d2e12f62cfdfbf9da6968fde2f928982670b
- https://github.com/chromiumembedded/cef/security/advisories/GHSA-m375-jw5x-x8mg
- https://github.com/chromiumembedded/cef/commit/1f55d2e12f62cfdfbf9da6968fde2f928982670b
- https://github.com/chromiumembedded/cef/security/advisories/GHSA-m375-jw5x-x8mg
JSON original (NVD)
Mostrar
{
"id": "CVE-2024-21639",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-21639",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-04-22T18:00:44.364394Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.6
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 9.6,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.8,
"exploitabilityScore": 3.1
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "chromiumembedded",
"product": "cef",
"versions": [
{
"status": "affected",
"version": "< commit 1f55d2e"
}
]
}
]
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"affectedData": [
{
"cpes": [
"cpe:2.3:a:chromiumembedded:chromium_embedded_framework:-:*:*:*:*:*:*:*"
],
"vendor": "chromiumembedded",
"product": "chromium_embedded_framework",
"versions": [
{
"status": "affected",
"version": "-"
}
],
"defaultStatus": "unknown"
}
]
}
],
"published": "2024-01-12T22:15:45.750",
"references": [
{
"url": "https://github.com/chromiumembedded/cef/commit/1f55d2e12f62cfdfbf9da6968fde2f928982670b",
"tags": [
"Patch"
],
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/chromiumembedded/cef/security/advisories/GHSA-m375-jw5x-x8mg",
"tags": [
"Exploit",
"Vendor Advisory"
],
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/chromiumembedded/cef/commit/1f55d2e12f62cfdfbf9da6968fde2f928982670b",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://github.com/chromiumembedded/cef/security/advisories/GHSA-m375-jw5x-x8mg",
"tags": [
"Exploit",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"description": [
{
"lang": "en",
"value": "CWE-125"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "CEF (Chromium Embedded Framework ) is a simple framework for embedding Chromium-based browsers in other applications. `CefLayeredWindowUpdaterOSR::OnAllocatedSharedMemory` does not check the size of the shared memory, which leads to out-of-bounds read outside the sandbox. This vulnerability was patched in commit 1f55d2e."
},
{
"lang": "es",
"value": "CEF (Chromium Embedded Framework) es un framework simple para integrar navegadores basados en Chromium en otras aplicaciones. `CefLayeredWindowUpdaterOSR::OnAllocatedSharedMemory` no verifica el tamaño de la memoria compartida, lo que genera lecturas fuera de los límites fuera de la sandbox. Esta vulnerabilidad fue parcheada en el commit 1f55d2e."
}
],
"lastModified": "2026-06-17T07:09:54.167",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:chromiumembedded:chromium_embedded_framework:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3DDE5170-AEB5-4EB6-B436-9634C0190E6A",
"versionEndExcluding": "2024-01-05"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security-advisories@github.com"
}