CVE-2009-1531

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 35.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-06-10 · updated 2026-06-16
Weakness: CWE-399

Description

Microsoft Internet Explorer 7 for Windows XP SP2 and SP3; 7 for Server 2003 SP2; 7 for Vista Gold, SP1, and SP2; and 7 for Server 2008 SP2 allows remote attackers to execute arbitrary code via frequent calls to the getElementsByTagName function combined with the creation of an object during reordering of elements, followed by an onreadystatechange event, which triggers an access of an object that (1) was not properly initialized or (2) is deleted, aka "HTML Object Memory Corruption Vulnerability."

Affected products

Microsoft Internet Explorer 11: 7

References

http://osvdb.org/54950
http://www.securityfocus.com/archive/1/504216/100/0/threaded
http://www.securityfocus.com/bid/35234
http://www.securitytracker.com/id?1022350
http://www.us-cert.gov/cas/techalerts/TA09-160A.html
http://www.vupen.com/english/advisories/2009/1538
http://www.zerodayinitiative.com/advisories/ZDI-09-039
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-019
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6308
http://osvdb.org/54950
http://www.securityfocus.com/archive/1/504216/100/0/threaded
http://www.securityfocus.com/bid/35234

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