CVE-2009-0077
The firewall engine in Microsoft Forefront Threat Management Gateway, Medium Business Edition (TMG MBE); and Internet Security and Acceleration (ISA) Server 2004 SP3, 2006, 2006 Supportability Update, and 2006 SP1; does not properly manage the session state of web listeners, which allows remote attackers to cause a denial of service (many stale sessions) via crafted packets, aka "Web Proxy TCP State Limited Denial of Service Vulnerability."
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- EPSS score
- 78.5% (100th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-0086)
- Published
- April 15, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-0086 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- microsoft / forefront threat management gateway
- microsoft / internet security and acceleration server
- microsoft / internet security and acceleration server
- microsoft / internet security and acceleration server
- microsoft / internet security and acceleration server
References
- http://osvdb.org/53636
- http://secunia.com/advisories/34687
- http://www.securitytracker.com/id?1022045
- http://www.us-cert.gov/cas/techalerts/TA09-104A.html(US Government Resource)
- http://www.vupen.com/english/advisories/2009/1030
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-016
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6068
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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