CVE-2014-0307

Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code or cause a denial of service (memory…

published March 12, 2014

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.4th percentile for exploit probability.

CVSS
—
EPSS
69%
Percentile
99.4
In the wild
Unconfirmed
What it is

⚠️ A crafty sequence can trigger a use-after-free vulnerability in Internet Explorer 9! This lets attackers execute arbitrary code or bring about memory corruption — like a waiter serving a dish that's already gone cold. 🔥 Think of this vulnerability as a restaurant where the chef accidentally serves a dish that’s already been cleared off the table. The customers (malicious actors) can create chaos by ordering from the invisible leftovers, causing disruption in the dining experience. If exploited, this vulnerability could allow an attacker to execute arbitrary code on the affected system, potentially taking control of it. This could lead to a denial of service, causing memory corruption that disrupts the service users rely on. It's not a critical alert, but it’s definitely worth keeping an eye on!

Put simply

Think of this vulnerability as a restaurant where the chef accidentally serves a dish that’s already been cleared off the table. The customers (malicious actors) can create chaos by ordering from the invisible leftovers, causing disruption in the dining experience. This use-after-free vulnerability occurs when Internet Explorer 9 mishandles a TextRange element, allowing attackers to leverage this flaw for code execution or memory issues. Essentially, when memory is freed but still referenced, it opens the door for exploitation.

What to do

If exploited, this vulnerability could allow an attacker to execute arbitrary code on the affected system, potentially taking control of it. This could lead to a denial of service, causing memory corruption that disrupts the service users rely on. It's not a critical alert, but it’s definitely worth keeping an eye on! While this specific CVE has not been widely exploited, it's prudent to ensure that users are aware of the risks. Recommend users to upgrade to the latest version of Internet Explorer or, even better, switch to more modern browsers. Additionally, consider employing strong security practices to mitigate risks from outdated software. You've got this! Stay vigilant and keep your systems updated for a safer browsing experience. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.69452 · 99.4th percentile
Published
2014-03-12T01:00Z
EPSS history
Timeline
  • 12 MAR 01:00Z
    Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code or cause a denial of service (memory…
    cvelistv5