Which products and versions are affected by CVE-2010-2551?

Affected: Windows 7 (Microsoft); Windows Server 2008 (Microsoft); Windows Vista (Microsoft). The full list is in the CVE brief.

Is CVE-2010-2551 being exploited in the wild?

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

Is CVE-2010-2551 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-2010-2551?

No public exploit code is known.

Is there a fix for CVE-2010-2551?

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

How urgently should CVE-2010-2551 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Request A Demo

Vulnerability Intelligence

CVE-2010-2551

High

The SMB Server in Microsoft Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly validate an internal variable in an SMB packet, which allows remote attackers to cause a denial of service (system hang) via a crafted (1) SMBv1 or (2)…

Published Aug 11, 2010 · Updated Apr 28, 2026

Key Facts

Patch immediately

CVE-2010-2551 is a high-severity vulnerability (CVSS 7.8 v2) affecting Windows 7 (Microsoft), Windows Server 2008 (Microsoft), Windows Vista (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 67% 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 it is very likely to be exploited soon.

CVSS v2

7.8

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

EPSS (30-day exploit likelihood)

67%

Higher than 99.2% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2010-2551 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Affected Products

13 affected entries in total

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

Timeline

Publicly disclosed
Aug 11, 2010
Last updated
Apr 28, 2026

Weakness Type

CWE-20 Improper Input Validation

References

FAQ

Common Questions.

The SMB Server in Microsoft Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly validate an internal variable in an SMB packet, which allows remote attackers to cause a denial of service (system hang) via a crafted (1) SMBv1 or (2) SMBv2 packet, aka "SMB Variable Validatio…
Affected: Windows 7 (Microsoft); Windows Server 2008 (Microsoft); Windows Vista (Microsoft). 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.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2010-2551 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.