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Vulnerability record · CVE-2007-0099 · published 8 January 2007

CVE-2007-0099: Microsoft xml core services race condition vulnerability

Microsoft · Xml Core Services

Race condition in the msxml3 module in Microsoft XML Core Services 3.0, as used in Internet Explorer 6 and other applications, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via many nested tags in an XML document in an IFRAME, when synchronous document rendering is frequently disrupted with asynchronous events, as demonstrated using a JavaScript timer, which can trigger NULL pointer dereferences or memory corruption, aka "MSXML Memory Corruption Vulnerability."

9.3 CVSS 2.0 High EPSS 25% · top 2.1% CWE-362 · Race condition
9.3CVSS 2.0 base score
25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
30References
16 Jun 2026Last modified by NVD

Description

Race condition in the msxml3 module in Microsoft XML Core Services 3.0, as used in Internet Explorer 6 and other applications, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via many nested tags in an XML document in an IFRAME, when synchronous document rendering is frequently disrupted with asynchronous events, as demonstrated using a JavaScript timer, which can trigger NULL pointer dereferences or memory corruption, aka "MSXML Memory Corruption Vulnerability."

AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/fulldisclosure/2007-01/0113.html
http://isc.sans.org/diary.php?storyid=2004
http://marc.info/?l=bugtraq&m=122703006921213&w=2
http://osvdb.org/32627
http://seclists.org/fulldisclosure/2007/Jan/0110.html
http://secunia.com/advisories/23655 Vendor Advisory
http://securitytracker.com/id?1021164
http://www.securityfocus.com/archive/1/455965/100/0/threaded
http://www.securityfocus.com/archive/1/455986/100/0/threaded
http://www.securityfocus.com/archive/1/456343/100/0/threaded
http://www.securityfocus.com/bid/21872 Patch
http://www.us-cert.gov/cas/techalerts/TA08-316A.html US Government Resource
http://www.vupen.com/english/advisories/2008/3111 Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-069
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5793
http://archives.neohapsis.com/archives/fulldisclosure/2007-01/0113.html
http://isc.sans.org/diary.php?storyid=2004
http://marc.info/?l=bugtraq&m=122703006921213&w=2
http://osvdb.org/32627
http://seclists.org/fulldisclosure/2007/Jan/0110.html
http://secunia.com/advisories/23655 Vendor Advisory
http://securitytracker.com/id?1021164
http://www.securityfocus.com/archive/1/455965/100/0/threaded
http://www.securityfocus.com/archive/1/455986/100/0/threaded
http://www.securityfocus.com/archive/1/456343/100/0/threaded
http://www.securityfocus.com/bid/21872 Patch
http://www.us-cert.gov/cas/techalerts/TA08-316A.html US Government Resource
http://www.vupen.com/english/advisories/2008/3111 Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-069
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5793

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Source: NIST National Vulnerability Database (record CVE-2007-0099), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.