CVE-2013-2551KEV · OVERDUE

Microsoft Internet Explorer Use-After-Free Vulnerability

High · published March 11, 2013

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 99.5th percentile for exploit probability.

1649
days past CISA
deadline
CVSS v3.1
8.8
EPSS
74%
Percentile
99.5
In the wild
Confirmed
What it is

🚨 Remote code execution is just a crafted web page away! This use-after-free vulnerability in Internet Explorer (from versions 6 to 10) allows attackers to execute arbitrary code, potentially wreaking havoc on your system. 🔥 Think of it like a restaurant where the chef accidentally serves an empty plate, and a hungry customer decides to take a bite anyway! The result? A messy situation — just as an attacker can exploit a freed-up memory space to run malicious code. 🍽️ If exploited, an attacker could gain full control of your system, read sensitive data, install malware, or even delete files — all while you think you’re just browsing the web. This could lead to absolutely devastating consequences for your data integrity and privacy! ⚡

Put simply

Think of it like a restaurant where the chef accidentally serves an empty plate, and a hungry customer decides to take a bite anyway! The result? A messy situation — just as an attacker can exploit a freed-up memory space to run malicious code. 🍽️ This vulnerability occurs when Internet Explorer accesses a deleted object due to improper memory management, allowing an attacker to execute malicious code on the user's machine. It's like a ghost in the system suddenly being able to take over!

What to do

If exploited, an attacker could gain full control of your system, read sensitive data, install malware, or even delete files — all while you think you’re just browsing the web. This could lead to absolutely devastating consequences for your data integrity and privacy! ⚡ To protect yourself, immediately upgrade to the latest version of Internet Explorer or consider migrating to a more secure browser. Additionally, ensure all your security patches are up to date, and enable features like Data Execution Prevention (DEP) to bolster protection. 🛡️ You've got this! Stay vigilant and follow these steps to shield your system from potential threats! 🚀

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
0.73918 · 99.5th percentile
Published
2013-03-11T10:00Z
KEV added
2022-03-28 · due 2022-04-18
EPSS history
Timeline
  • 28 MAR 00:00Z
    Added to CISA KEV — remediate by Apr 18
    kev
  • 11 MAR 10:00Z
    Use-after-free vulnerability in Microsoft Internet Explorer 6 through 10 allows remote attackers to execute arbitrary code via a crafted web site that triggers…
    cvelistv5