CVE-2010-3346

Microsoft Internet Explorer 6, 7, and 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, leading to memory corruption, aka "HTML Element Memory Corruption Vulnerability."

Published: 2010-12-16 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

NVD Status：Modified，CVE State: published

View at NVD, CVE.org, EUVD

Conclusion & alert: CVE-2010-3346 is rated High Risk (67.1/100): CVSS Critical severity, with high exploitation likelihood (EPSS 58.39%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2010-3346

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-12-28	62.80%	58.39%	-4.41%
2	2025-12-27	58.39%	62.80%	+4.41%
3	2025-10-28	—	58.39%	—

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-3346

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.3	2.0	HIGH	`AV:N/AC:M/Au:N/C:C/I:C/A:C` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:M) Exploitation needs some favorable conditions, but not exceptional ones. Authentication (AU:N) No authentication is required. Confidentiality impact (C:C) Complete confidentiality impact. Integrity impact (I:C) Complete integrity impact. Availability impact (A:C) Complete availability impact.	8.6	10.0	[email protected]

Weakness enumeration for CVE-2010-3346

CWE-908 MITRE ↗

Affected software / configurations for CVE-2010-3346

Vendor	Product	Version	Raw CPE
microsoft	internet_explorer	6	cpe:2.3:a:microsoft:internet_explorer:6:::::::*
microsoft	internet_explorer	7	cpe:2.3:a:microsoft:internet_explorer:7:::::::*
microsoft	internet_explorer	8	cpe:2.3:a:microsoft:internet_explorer:8:::::::*

References for CVE-2010-3346

URL	Tags
http://www.securitytracker.com/id?1024872	Broken Link Third Party Advisory VDB Entry
http://www.us-cert.gov/cas/techalerts/TA10-348A.html	Third Party Advisory US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-090	Patch Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12322	Tool Signature

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