Findings

CVE-2014-0322

Microsoft Internet Explorer Use-After-Free Vulnerability

Published Feb 14, 2014 · updated Jun 16, 2026 · microsoft internet explorer

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.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 14, 2014 · Catalog

    Detected

    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.

  2. May 4, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. May 25, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Required action

Apply updates per vendor instructions.

CISA due date May 25, 2022

Affected

  • cpe microsoft/internet explorer10
  • cpe microsoft/internet explorer9
  • vendor Microsoft Internet Explorerversion unspecified

Sources

  • CISA KEVCVE-2014-0322

    Use-after-free vulnerability in Microsoft Internet Explorer allows remote attackers to execute code.

    cisa.gov
  • CVE.orgCVE-2014-0322

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2014-0322

    30-day exploitation probability 85.1%

    first.org
  • Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • Metasploit Modulesexploit_windows/browser/ms14_012_cmarkup_uaf

    Public module reference (normal). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDCVE-2014-0322

    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

    nvd.nist.gov

References

CVE-2014-0322 · ZeroDay Findings