CVE-2014-4123KEV · OVERDUE

Microsoft Internet Explorer Privilege Escalation Vulnerability

High · published October 15, 2014

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 8.8. It is confirmed in active exploitation. It sits in the 98.8th percentile for exploit probability.

1591
days past CISA
deadline
CVSS v3.1
8.8
EPSS
47%
Percentile
98.8
In the wild
Confirmed
What it is

🚨 A crafted website can elevate an attacker's privileges in Internet Explorer like slipping a VIP pass to the wrong person! 🔥 It's like a hotel where, with just the right conversation and a dash of charm, someone can sneak into the penthouse without a keycard. This vulnerability allows attackers to take advantage of the browser's trust in unverified content. An attacker could exploit this vulnerability to gain elevated rights and perform actions on your device that you never authorized — potentially accessing sensitive data, installing malware, or even taking full control of the system. This is a high-stakes risk that absolutely needs addressing!

Put simply

It's like a hotel where, with just the right conversation and a dash of charm, someone can sneak into the penthouse without a keycard. This vulnerability allows attackers to take advantage of the browser's trust in unverified content. This vulnerability in Internet Explorer (versions 7 through 11) allows remote attackers to gain privileges through specially crafted web pages, leading to elevation of privileges on the affected system.

What to do

An attacker could exploit this vulnerability to gain elevated rights and perform actions on your device that you never authorized — potentially accessing sensitive data, installing malware, or even taking full control of the system. This is a high-stakes risk that absolutely needs addressing! Upgrade to the latest version of Internet Explorer, as this vulnerability has been patched in newer releases. Additionally, consider implementing stricter security policies for web browsing and regularly educate users about the dangers of visiting untrusted websites. You've got this! With these steps, you'll be keeping your systems safe and sound! 🛡️

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.47133 · 98.8th percentile
Published
2014-10-15T10:00Z
KEV added
2022-05-25 · due 2022-06-15
EPSS history
Timeline
  • 25 MAY 00:00Z
    Added to CISA KEV — remediate by Jun 15
    kev
  • 15 OCT 10:00Z
    Microsoft Internet Explorer 7 through 11 allows remote attackers to gain privileges via a crafted web site, aka "Internet Explorer Elevation of Privilege…
    cvelistv5