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WatchlistCritical

CVE-2010-0269Windows 2000 Vulnerability

The SMB client 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 properly allocate memory for SMB responses, which allows remote SMB servers and…

Published Apr 14, 2010 · Updated Apr 28, 2026

Key Facts

Patch immediately
  • CVE-2010-0269 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Windows 2000 (Microsoft), Windows 2003 Server (Microsoft), Windows 7 (Microsoft) and 4 more products.
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 28% 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)

28%

Higher than 98.1% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

36/100

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

1

Proof-of-concept links

In-the-wild evidence

0

Reports of active use

Description

The SMB client 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 properly allocate memory for SMB responses, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code via a crafted (1) SMBv1 or (2) SMBv2 response, aka "SMB Client Memory Allocation Vulnerability."

Affected Products

23 affected entries in total
ProductAffected versionsFixed in
Windows 2000MicrosoftSee advisoryn/a
Windows 2003 ServerMicrosoftSee advisoryn/a
Windows 7MicrosoftSee advisoryn/a
Windows Server 2003MicrosoftSee advisoryn/a
Windows Server 2008MicrosoftSee advisoryn/a
2 more affected products in the full CVE brief

Timeline

  1. Publicly disclosed

    Apr 14, 2010

  2. Last updated

    Apr 28, 2026

Weakness Type

  • CWE-399

FAQ

Common Questions.

Is CVE-2010-0269 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.

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Figures as of Oct 20, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

To report an error, contact Brandefense.