CVE-2013-0022

Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to…

Critical · published February 13, 2013

CVSS v3.1
9.0
EPSS
17%
Percentile
97.0
In the wild
Unconfirmed
What it is

🚨 A crafted website can trigger a deadly chain reaction! The use-after-free vulnerability in Internet Explorer 9 allows attackers to execute arbitrary code just by visiting a malicious site. 🔥 Think of this flaw as a restaurant that keeps serving dishes from a menu that's no longer valid—each time you order an item that's been removed, it could lead to a disastrous mix-up in the kitchen. Here, the deleted object is like a dish gone rogue, ready to wreak havoc if you accidentally ask for it! An attacker could gain complete control over the affected system, leading to a nightmarish scenario where they can steal sensitive data, install malware, or manipulate the system in harmful ways. This vulnerability opens the door wide for devastating consequences—all from a single click. Yikes!

Put simply

Think of this flaw as a restaurant that keeps serving dishes from a menu that's no longer valid—each time you order an item that's been removed, it could lead to a disastrous mix-up in the kitchen. Here, the deleted object is like a dish gone rogue, ready to wreak havoc if you accidentally ask for it! This use-after-free vulnerability occurs when Internet Explorer accesses a memory location that has already been freed. This flaw can be exploited via a crafted webpage, allowing attackers to execute arbitrary code in the context of the user.

What to do

An attacker could gain complete control over the affected system, leading to a nightmarish scenario where they can steal sensitive data, install malware, or manipulate the system in harmful ways. This vulnerability opens the door wide for devastating consequences—all from a single click. Yikes! Immediate action is essential: Update Internet Explorer to the latest version to patch this vulnerability. Encourage users to avoid unsupported versions, and consider implementing additional security measures like web filters to block harmful sites. You can tackle this head-on! By following these steps, you'll boost your defenses against this vulnerability and keep your systems safe. 🛡️

The record
Technical detail
CVSS v3.1
9.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.16805 · 97.0th percentile
Published
2013-02-13T11:00Z
EPSS history
Timeline
  • 13 FEB 11:00Z
    Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to…
    cvelistv5