CVE-2007-0087
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
Key facts
- CVSS score
- 7.8 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C- EPSS score
- 24.4% (98th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2007-0091)
- Published
- January 5, 2007
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2007-0091 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- microsoft / internet information server
References
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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