CVE-2014-0322VulnerabilityPublished 05/04/2022Updated 10/24/2026

CVE-2014-0322: Microsoft Internet Explorer Use-After-Free Vulnerability

Affects Microsoft Internet ExplorerSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 05/04/2022
KEV deadline: 05/25/2022
EPSS: 85.1% chance of exploitation in 30 days – higher than 99% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2014-0322 (opens in a new tab)

Description

CVE-2014-0322 is a use-after-free vulnerability in Microsoft Internet Explorer that allows remote attackers to execute arbitrary code. This vulnerability has been exploited in the wild. It affects Internet Explorer versions as specified by Microsoft advisories, though no specific affected versions are listed here. The vulnerability is categorized as high severity due to the potential for remote code execution.

Summary

This vulnerability involves a use-after-free condition in Microsoft Internet Explorer, which can be exploited by remote attackers to execute arbitrary code on the affected system. The flaw arises when the browser improperly handles objects in memory, leading to a state where freed memory is accessed. Exploitation can result in full compromise of the affected system. The vulnerability has been observed in active exploitation campaigns.

Impact

Successful exploitation allows remote attackers to execute arbitrary code, potentially leading to full system compromise. This can enable attackers to install programs, view, change, or delete data, or create new accounts with full user rights.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch links or vendor advisory content are provided here, users should consult Microsoft's official security bulletins and update Internet Explorer to the latest supported version or apply any available security updates addressing this vulnerability.

Weaknesses

CWE-416Use After Free (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 11:40:28 UTC

Weaknesses

References

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