CVE-2014-0322

HIGH8.8

CISA KEV

Published 2014-02-14 · Updated 2026-06-17 · Source secure@microsoft.com

Summary

CVE-2014-0322 is a high-severity (CVSS 8.8) vulnerability in Microsoft Internet Explorer. CISA added it to the Known Exploited Vulnerabilities catalog on May 4, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 25, 2022. CISA does not currently list it as used in ransomware campaigns. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

All 390 known-exploited Microsoft vulnerabilities →

Description

Use-after-free vulnerability in Microsoft Internet Explorer 9 and 10 allows remote attackers to execute arbitrary code via vectors involving crafted JavaScript code, CMarkup, and the onpropertychange attribute of a script element, as exploited in the wild in January and February 2014.

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

CWE-416CWE-416

CISA Known-Exploited Vulnerability

Product: Microsoft — Internet Explorer

Name: Microsoft Internet Explorer Use-After-Free Vulnerability

Date added: 2022-05-04 · Due: 2022-05-25

Required action: Apply updates per vendor instructions.

References

View on NVD

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