CVE-2025-59295CWE-122

Windows URL Parsing Remote Code Execution Vulnerability

High · published October 14, 2025

CVSS v3.1
8.8
EPSS
2%
Percentile
79.5
In the wild
Unconfirmed
What it is

⚡ A heap-based buffer overflow in Internet Explorer could allow attackers to execute their code over the network with just the right setup! Think of it like a restaurant kitchen where the chef has accidentally left the door to the pantry wide open—anyone can stroll in and start mixing ingredients they shouldn’t, potentially ruining the entire dish. If exploited, an attacker could execute arbitrary code, leading to unauthorized access, data breaches, or even full system control. This means they could steal sensitive information or create chaos on your system, all while you might be blissfully unaware!

Put simply

Think of it like a restaurant kitchen where the chef has accidentally left the door to the pantry wide open—anyone can stroll in and start mixing ingredients they shouldn’t, potentially ruining the entire dish. The vulnerability in Internet Explorer allows an unauthorized attacker to manipulate memory, enabling code execution without proper authorization through a crafted network packet.

What to do

If exploited, an attacker could execute arbitrary code, leading to unauthorized access, data breaches, or even full system control. This means they could steal sensitive information or create chaos on your system, all while you might be blissfully unaware! Immediately consider deploying patches or updates provided by Microsoft for Internet Explorer. Additionally, restrict access to vulnerable systems and educate users about safe browsing practices to avoid potential exploits. Regularly check for updates to ensure your environment is secure. You've got this! 🎉 With a few proactive measures, you can lock down your systems and keep those pesky attackers at bay! 🛡️

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/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.01900 · 79.5th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2025-10-14T17:00Z
EPSS history
Timeline
  • 14 OCT 17:00Z
    Windows URL Parsing Remote Code Execution Vulnerability
    cvelistv5