ExploitedIn CISA KEVFix available

CVE-2014-0322

Exploitation confirmed. First attested on 2022-05-04 by CISA-ADP, CISA KEV, GCVE · kevintel.

Published2014-02-14
WeaknessCWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2014-02-1416:55CVE publishedNVD
2022-05-04Added to the CISA KEV catalogCISA KEV
2022-05-04Listed as exploited by GCVEGCVE
2022-05-04Exploitation first reportedCISA KEV
2025-02-1018:56SSVC exploitation set to activeCISA-ADP
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2014-0322?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2014-0322?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Microsoft internet explorerversion to verify

Branch	Affected	Fixed in	Source
9.x	= 9	no fix published	NVD
10.x	= 10	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

CISA’s required action: Apply updates per vendor instructions.due 2022-05-25

Advisories and patches

technet.microsoft.comPatch · Vendor Advisory
docs.microsoft.comPatch · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

CISA Known Exploited Vulnerability

Date Added: 2022-05-04
Patch Due Date: 2022-05-25
Ransomware Use: Unknown
Required Action: Apply updates per vendor instructions.

Sources

CISA KEVKEV entry2022-05-04
GCVEexploitation2022-05-04
CISA-ADPSSVC decisionactive2025-02-10
OpenCVESSVC decisionactive—
CISA-ADPCVSS 3.18.82025-02-10
NVDCVSS 3.18.8read 2026-10-23
NVDCVSS 2.09.3read 2026-10-23
CISA-ADPweakness (CWE)CWE-4162025-02-10
NVDweakness (CWE)CWE-416read 2026-10-23
FIRST EPSSEPSS score85.1 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2014-02-14
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2014-0322?

Is CVE-2014-0322 actively exploited?

Yes. CVE-2014-0322 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-05-25.

What is the CVSS score for CVE-2014-0322?

CVE-2014-0322 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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