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CVE-2014-0322

Microsoft Internet Explorer Use-After-Free

8.8 HIGHActively exploited (CISA KEV)Public exploitEPSS 85.1%
  1. Published14 Feb 2014
  2. Added to CISA KEV4 May 2022
  3. Remediation due25 May 2022
Actively exploited (CISA KEV)

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

Added to KEV: 4 May 2022Federal remediation due: 25 May 2022

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Microsoft Internet Explorer10 · 9

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Frequently asked

Is CVE-2014-0322 being actively exploited?

Yes. CVE-2014-0322 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 4 May 2022.

How severe is CVE-2014-0322?

CVE-2014-0322 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 85.1% probability of exploitation.

Which products are affected by CVE-2014-0322?

Affected products include Microsoft Internet Explorer.

How do I fix CVE-2014-0322?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2014-0322 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.