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Vulnerability Intelligence

CVE-2010-0242

High

The TCP/IP implementation in Microsoft Windows Vista Gold, SP1, and SP2 and Server 2008 Gold and SP2 allows remote attackers to cause a denial of service (system hang) via crafted packets with malformed TCP selective acknowledgement (SACK) values, aka "TCP/IP Selective…

Published Feb 10, 2010 · Updated Apr 28, 2026

Key Facts

Patch immediately
  • CVE-2010-0242 is a high-severity vulnerability (CVSS 7.8 v2) affecting 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 66% 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)

66%

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

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Description

The TCP/IP implementation in Microsoft Windows Vista Gold, SP1, and SP2 and Server 2008 Gold and SP2 allows remote attackers to cause a denial of service (system hang) via crafted packets with malformed TCP selective acknowledgement (SACK) values, aka "TCP/IP Selective Acknowledgement Vulnerability."

Affected Products

11 affected entries in total
ProductAffected versionsFixed in
Windows Server 2008MicrosoftSee advisoryn/a
Windows VistaMicrosoftSee advisoryn/a

Timeline

  1. Publicly disclosed

    Feb 10, 2010

  2. Last updated

    Apr 28, 2026

Weakness Type

  • CWE-399

References

FAQ

Common Questions.

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