CVE-2009-2523
Estado: ModificadaAlta (10)—
The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to execute arbitrary code via an RPC message containing a string without a null terminator, which triggers a heap-based buffer overflow in the LlsrLicenseRequestW method, aka "License Logging Server Heap Overflow Vulnerability."
CVSS
- Versión: 2.0
- Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
- Puntuación base: 10
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 26%
- Percentil entre todas las CVEs puntuadas: 98
- Fecha de la puntuación: 7/10/2026
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, CWE-787
Referencias
- http://www.us-cert.gov/cas/techalerts/TA09-314A.html
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-064
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6300
- http://www.us-cert.gov/cas/techalerts/TA09-314A.html
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-064
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6300
JSON original (NVD)
Mostrar
{
"id": "CVE-2009-2523",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 10,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
"authentication": "NONE",
"integrityImpact": "COMPLETE",
"accessComplexity": "LOW",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "COMPLETE"
},
"acInsufInfo": false,
"impactScore": 10,
"baseSeverity": "HIGH",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"affected": [
{
"source": "secure@microsoft.com",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2009-11-11T19:30:00.407",
"references": [
{
"url": "http://www.us-cert.gov/cas/techalerts/TA09-314A.html",
"tags": [
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"US Government Resource"
],
"source": "secure@microsoft.com"
},
{
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-064",
"tags": [
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],
"source": "secure@microsoft.com"
},
{
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6300",
"tags": [
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],
"source": "secure@microsoft.com"
},
{
"url": "http://www.us-cert.gov/cas/techalerts/TA09-314A.html",
"tags": [
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],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
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"tags": [
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],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6300",
"tags": [
"Broken Link"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-125"
},
{
"lang": "en",
"value": "CWE-787"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to execute arbitrary code via an RPC message containing a string without a null terminator, which triggers a heap-based buffer overflow in the LlsrLicenseRequestW method, aka \"License Logging Server Heap Overflow Vulnerability.\""
},
{
"lang": "es",
"value": "El servidor de registro de licencias (llssrv. exe) en Microsoft Windows 2000 SP4 permite a los atacantes remotos ejecutar código arbitrario a través de un mensaje RPC que contiene una cadena sin null terminator, que desencadena un desbordamiento de búfer basado en el montón en el método LlsrLicenseRequestW, también conocido como \"vulnerabilidad de desbordamiento de montón de servidor de registro de licencias.\""
}
],
"lastModified": "2026-06-16T23:09:37.930",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "83E7C4A0-78CF-4B56-82BF-EC932BDD8ADF"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "secure@microsoft.com"
}