Is CVE-2011-0346 in the CISA KEV catalog?

No. CVE-2011-0346 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-0346?

CVE-2011-0346 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2011-0346?

CVE-2011-0346 has an EPSS score of 31.02% (98th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2011-0346?

No published fix for CVE-2011-0346 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2011-0346

HIGHEPSS 98th pctl

8.1

CVSS v3

NVD

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."

CWE-399Resource Management Errors CWE-416Use After Free

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

31.02%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Vendor Advisory1

vupen.com

Government Resource2

Other references12

Related Vulnerabilities

Other CWE-399 (Resource Management Errors) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2009-3103	High	10.0	90%	-	-
CVE-2009-0075	High	9.3	85%	-	-
CVE-2005-1790	Low	2.6	83%	-	-
CVE-2010-0806	High	8.8	82%	KEV	-
CVE-2009-2526	High	7.8	82%	-	-
CVE-2015-1868	High	7.8	82%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.