Which products and versions are affected by CVE-2010-0231?

Affected: Windows 2000 (Microsoft); Windows 2003 Server (Microsoft); Windows 7 (Microsoft), among others. The full list is in the CVE brief.

Is CVE-2010-0231 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2010-0231 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2010-0231?

Public exploit code is available.

Is there a fix for CVE-2010-0231?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2010-0231 be patched?

Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Request A Demo

WatchlistCritical

CVE-2010-0231Windows 2000 Vulnerability

Published Feb 10, 2010 · Updated Apr 28, 2026

Key Facts

Patch immediately

CVE-2010-0231 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Windows 2000 (Microsoft), Windows 2003 Server (Microsoft), Windows 7 (Microsoft) and 3 more products.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 41% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v2

10.0

AV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

41%

Higher than 98.6% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

38/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Description

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."

Affected Products

21 affected entries in total

Product	Affected versions	Fixed in
Windows 2000Microsoft	See advisory	n/a
Windows 2003 ServerMicrosoft	See advisory	n/a
Windows 7Microsoft	See advisory	n/a
Windows Server 2008Microsoft	See advisory	n/a
Windows VistaMicrosoft	See advisory	n/a

1 more affected products in the full CVE brief

Timeline

Publicly disclosed
Feb 10, 2010
Last updated
Apr 28, 2026

Weakness Type

CWE-264
CWE-310

References

FAQ

Common Questions.

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 ot…
Affected: Windows 2000 (Microsoft); Windows 2003 Server (Microsoft); Windows 7 (Microsoft), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Is CVE-2010-0231 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.