CVE-2014-4123 — Microsoft Internet Explorer Privilege Escalation Vulnerability

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-05-25. Ransomware use: Unknown.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

08Timeline

• Published: 2014-10-15T10:00:00.000Z
• Last modified: 2025-10-22T00:05:35.270Z
• Added to CISA KEV: 2022-05-25
• BOD 22-01 due: 2022-06-15

09References

• blogs.technet.com — http://blogs.technet.com/b/srd/archive/2014/10/14/accessing-risk-for-the-october…
• secunia.com — http://secunia.com/advisories/60968
• www.securitytracker.com — http://www.securitytracker.com/id/1031018
• docs.microsoft.com — https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-05…
• www.securityfocus.com — http://www.securityfocus.com/bid/70326