CVE-2025-12727CWE-787

CVE-2025-12727

High · published November 11, 2025

CVSS v3.1
8.8
EPSS
0%
Percentile
18.2
In the wild
Unconfirmed
What it is

⚡ A single crafted HTML page could lead to heap corruption in Google Chrome! This might sound like a scene from a tech horror movie, but it’s the reality for versions prior to 142.0.7444.137. 🔥 Think of it like a restaurant where the chef accidentally mixes spoiled ingredients into a dish—guests won't know until they take a bite, and then it could cause a disastrous meal! Here, a malicious page does the same, sneaking in harmful content without a proper inspection. An attacker could exploit this flaw to manipulate the browser's memory, potentially leading to crashes or executing arbitrary code. This could expose sensitive data or compromise user sessions. Quite the nightmare for anyone using an outdated version!

Put simply

Think of it like a restaurant where the chef accidentally mixes spoiled ingredients into a dish—guests won't know until they take a bite, and then it could cause a disastrous meal! Here, a malicious page does the same, sneaking in harmful content without a proper inspection. This vulnerability in V8, the JavaScript engine for Chrome, arises from improper handling of memory. A remote attacker can exploit this via specially crafted HTML, leading to heap corruption, which can be leveraged for malicious purposes.

What to do

An attacker could exploit this flaw to manipulate the browser's memory, potentially leading to crashes or executing arbitrary code. This could expose sensitive data or compromise user sessions. Quite the nightmare for anyone using an outdated version! Update Google Chrome to version 142.0.7444.137 or higher immediately. Regularly check for updates to ensure your browser remains secure, and consider enabling automatic updates for peace of mind. You've got this! Keep your browser updated and enjoy safer browsing. 🛡️

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
0.00270 · 18.2th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2025-11-11T01:15Z
Affected products (2)
ProductVersionsFixed in
google/chrome< 142.0.7444.134142.0.7444.134
google/chrome< 142.0.7444.135142.0.7444.135
References (2)
EPSS history
Timeline
  • 10 NOV 20:00Z
    Inappropriate implementation in V8 in Google Chrome prior to 142.0.7444.137 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML…
    cvelistv5