CVE-2011-0346

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 31.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-01-07 · updated 2026-06-16
Weakness: CWE-399

Description

Use-after-free vulnerability in the ReleaseInterface function in MSHTML.DLL in Microsoft Internet Explorer 6, 7, and 8 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors related to the DOM implementation and the BreakAASpecial and BreakCircularMemoryReferences functions, as demonstrated by cross_fuzz, aka "MSHTML Memory Corruption Vulnerability."

Affected products

Microsoft Internet Explorer 11: 6, 7, 8

References

http://archives.neohapsis.com/archives/fulldisclosure/2010-12/0698.html
http://blogs.technet.com/b/srd/archive/2011/01/07/assessing-the-risk-of-public-issues-currently-being-tracked-by-the-msrc.aspx
http://lcamtuf.blogspot.com/2011/01/announcing-crossfuzz-potential-0-day-in.html
http://lcamtuf.coredump.cx/cross_fuzz/fuzzer_timeline.txt
http://lcamtuf.coredump.cx/cross_fuzz/known_vuln.txt
http://lcamtuf.coredump.cx/cross_fuzz/msie_crash.txt
http://www.kb.cert.org/vuls/id/427980
http://www.securityfocus.com/archive/1/515506/100/0/threaded
http://www.securityfocus.com/bid/45639
http://www.securitytracker.com/id?1024940
http://www.us-cert.gov/cas/techalerts/TA11-102A.html
http://www.vupen.com/english/advisories/2011/0026

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