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CVE-2007-0087

** DISPUTED ** Microsoft Internet Information Services (IIS), when accessed through a TCP...

7.8 HighDisputed

Microsoft Internet Information Services (IIS), when accessed through a TCP connection with a large window size, allows remote attackers to cause a denial of service (network bandwidth consumption) via a Range header that specifies multiple copies of the same fragment. NOTE: the severity of this issue has been disputed by third parties, who state that the large window size required by the attack is not normally supported or configured by the server, or that a DDoS-style attack would accomplish the same goal

Exploit likelihood

24.4%Up 11.3 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.8

Microsoft Internet Information Services (IIS), when accessed through a TCP connection with a large window size, allows remote attackers to cause a denial of service (network bandwidth consumption) via a Range header that specifies multiple copies of the same fragment. NOTE: the severity of this issue has been disputed by third parties, who state that the large window size required by the attack is not normally supported or configured by the server, or that a DDoS-style attack would accomplish the same goal

Record
CVE-2007-0087
CVSS 2.0
7.8 HighAV:N/AC:L/Au:N/C:N/I:N/A:C
Updated
2026-11-02
CVE List No score

Microsoft Internet Information Services (IIS), when accessed through a TCP connection with a large window size, allows remote attackers to cause a denial of service (network bandwidth consumption) via a Range header that specifies multiple copies of the same fragment. NOTE: the severity of this issue has been disputed by third parties, who state that the large window size required by the attack is not normally supported or configured by the server, or that a DDoS-style attack would accomplish the same goal

Record
CVE-2007-0087
Updated
2026-11-02
EUVDEUVD-2007-0091 No score

Microsoft Internet Information Services (IIS), when accessed through a TCP connection with a large window size, allows remote attackers to cause a denial of service (network bandwidth consumption) via a Range header that specifies multiple copies of the same fragment. NOTE: the severity of this issue has been disputed by third parties, who state that the large window size required by the attack is not normally supported or configured by the server, or that a DDoS-style attack would accomplish the same goal

Record
EUVD-2007-0091
Updated
2026-11-03
GitHub AdvisoriesGHSA-6332-3pxx-hqg9 No score

** DISPUTED ** Microsoft Internet Information Services (IIS), when accessed through a TCP...

** DISPUTED ** Microsoft Internet Information Services (IIS), when accessed through a TCP connection with a large window size, allows remote attackers to cause a denial of service (network bandwidth consumption) via a Range header that specifies multiple copies of the same fragment. NOTE: the severity of this issue has been disputed by third parties, who state that the large window size required by the attack is not normally supported or configured by the server, or that a DDoS-style attack would accomplish the same goal.

Record
GHSA-6332-3pxx-hqg9
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2007-0087 is a high vulnerability (CVSS 7.8) in Microsoft Internet Information Server, published January 5, 2007. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 24.4%, the 97th percentile.

References

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