CVE-2010-0231

Status: ModifiedHigh (10)—💥 Exploit

The SMB implementation in the Server service in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not use a sufficient source of entropy, which allows remote attackers to obtain access to files and other SMB resources via a large number of authentication requests, related to server-generated challenges, certain "duplicate values," and spoofing of an authentication token, aka "SMB NTLM Authentication Lack of Entropy Vulnerability."

CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Base score: 10

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 41%
Percentile among all scored CVEs: 99
Score date: 10/7/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · Microsoft Windows - NTLM Weak Nonce (MS10-012) (10/17/2010)

Affected technologies (6)

Microsoft — Windows 2000 Microsoft — Windows 2003 Server Microsoft — Windows 7 Microsoft — Windows Server 2008 Microsoft — Windows Vista Microsoft — Windows XP

CWEs

CWE-264, CWE-310

References

Raw JSON (NVD)

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{
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  "published": "2010-02-10T18:30:01.393",
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      "url": "http://www.us-cert.gov/cas/techalerts/TA10-040A.html",
      "tags": [
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      "source": "secure@microsoft.com"
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    },
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      "value": "La implementación del SMB en el servicio Server en Microsoft Windows 2000 SP4, Windows XP SP2 y SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, y SP2, Windows Server 2008 Gold, SP2, y R2, y Windows 7,  no utiliza una fuente con suficiente entropía, lo que permite a atacantes remotos conseguir el acceso a ficheros y a otros recursos SMB a través de un gran número de peticiones de autenticación, relativo a desafíos generador por el servidor, ciertos valores duplicados, y espiado de elementos de autenticación, también conocido como \"SMB NTLM Authentication Lack of Entropy Vulnerability.\""
    }
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  "lastModified": "2026-06-16T23:15:45.427",
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