CVE-2013-0020

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…

published February 13, 2013

CVSS
—
EPSS
28%
Percentile
98.1
In the wild
Unconfirmed
What it is

⚠️ Oops! A sneaky use-after-free vulnerability in Internet Explorer 9 allows attackers to hijack your system through just one crafted webpage. 🤯 Think of it like a restaurant where a waiter mistakenly serves a meal from a table that has already been cleared — the customers might end up with something dangerous that shouldn't be there. In the same way, this flaw lets attackers access deleted objects in memory, leading to potential exploits. If leveraged, this vulnerability can lead to arbitrary code execution, granting attackers full control over the system. Imagine an intruder slipping into your home while you're distracted, rummaging through your belongings, and potentially taking all your valuables!

Put simply

Think of it like a restaurant where a waiter mistakenly serves a meal from a table that has already been cleared — the customers might end up with something dangerous that shouldn't be there. In the same way, this flaw lets attackers access deleted objects in memory, leading to potential exploits. This use-after-free vulnerability occurs when Internet Explorer 9 accesses a memory object that has already been deleted, creating an opportunity for attackers to execute malicious code.

What to do

If leveraged, this vulnerability can lead to arbitrary code execution, granting attackers full control over the system. Imagine an intruder slipping into your home while you're distracted, rummaging through your belongings, and potentially taking all your valuables! To address this issue, ensure all users update to the latest version of Internet Explorer or switch to a more secure browser. Implementing strict browsing policies can also help mitigate risks from unknown or untrusted websites. This is fixable! Stay proactive, and you'll keep your system safe and sound. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.28331 · 98.1th 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