CVE-2014-4123

Name: CVE-2014-4123
Creator: NVD / NIST
Published: 2014-10-15T10:55:08.037+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10Actively ExploitedEPSS 40.29%

Last modified Jun 17, 2026

CVE-2014-4123 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Microsoft Internet Explorer 7 through 11 allows remote attackers to gain privileges via a crafted web site, aka "Internet Explorer Elevation of Privilege Vulnerability," as exploited in the wild in October 2014, a different vulnerability than CVE-2014-4124.. CISA has confirmed active exploitation in the wild. EPSS estimates a 40.29% chance of exploitation in the next 30 days.

Description

Microsoft Internet Explorer 7 through 11 allows remote attackers to gain privileges via a crafted web site, aka "Internet Explorer Elevation of Privilege Vulnerability," as exploited in the wild in October 2014, a different vulnerability than CVE-2014-4124.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

40.29%

98.5th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Jun 15, 2022.

Affected Software

Vendor	Product	Versions
Microsoft	Internet Explorer	7
Microsoft	Internet Explorer	8
Microsoft	Internet Explorer	9
Microsoft	Internet Explorer	10
Microsoft	Internet Explorer	11

References

http://blogs.technet.com/b/srd/archive/2014/10/14/accessing-risk-for-the-october-2014-security-updates.aspxNot Applicable, Vendor Advisory
http://secunia.com/advisories/60968Broken Link
http://www.securityfocus.com/bid/70326Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1031018Broken Link, Third Party Advisory, VDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-056Patch, Vendor Advisory
http://blogs.technet.com/b/srd/archive/2014/10/14/accessing-risk-for-the-october-2014-security-updates.aspxNot Applicable, Vendor Advisory
http://secunia.com/advisories/60968Broken Link
http://www.securityfocus.com/bid/70326Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1031018Broken Link, Third Party Advisory, VDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-056Patch, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-4123US Government Resource

Timeline

Published: Oct 15, 2014
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2014-4123?

How severe is CVE-2014-4123?

CVE-2014-4123 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 40.29% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2014-4123?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST