CVE-2009-0551
Microsoft Internet Explorer 6 SP1, 6 and 7 on Windows XP SP2 and SP3, 6 and 7 on Windows Server 2003 SP1 and SP2, 7 on Windows Vista Gold and SP1, and 7 on Windows Server 2008 does not properly handle transition errors in a request for one HTTP document…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 24.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
Microsoft Internet Explorer 6 SP1, 6 and 7 on Windows XP SP2 and SP3, 6 and 7 on Windows Server 2003 SP1 and SP2, 7 on Windows Vista Gold and SP1, and 7 on Windows Server 2008 does not properly handle transition errors in a request for one HTTP document followed by a request for a second HTTP document, which allows remote attackers to execute arbitrary code via vectors involving (1) multiple crafted pages on a web site or (2) a web page with crafted inline content such as banner advertisements, aka "Page Transition Memory Corruption Vulnerability."
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 24.92% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- microsoft/internet explorer
- Source
- secure@microsoft.com
EPSS 24.9% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://osvdb.org/53624
- http://secunia.com/advisories/34678
- http://support.avaya.com/elmodocs2/security/ASA-2009-133.htm
- http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=871138
- http://www.securitytracker.com/id?1022042
- http://www.us-cert.gov/cas/techalerts/TA09-104A.htmlUS Government Resource
- http://www.vupen.com/english/advisories/2009/1028
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-014
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6164
- http://osvdb.org/53624
- http://secunia.com/advisories/34678
- http://support.avaya.com/elmodocs2/security/ASA-2009-133.htm
- http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=871138
- http://www.securitytracker.com/id?1022042
- http://www.us-cert.gov/cas/techalerts/TA09-104A.htmlUS Government Resource
- http://www.vupen.com/english/advisories/2009/1028
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-014
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6164
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.