CVE-2024-4947KEV · OVERDUE

Google Chromium V8 Type Confusion Vulnerability

Critical · published May 15, 2024

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.6. It is confirmed in active exploitation. It sits in the 96.8th percentile for exploit probability.

865
days past CISA
deadline
CVSS v3.1
9.6
EPSS
15%
Percentile
96.8
In the wild
Confirmed
What it is

🚨 A crafty HTML page is all it takes to turn Chrome's V8 engine against you! This type confusion vulnerability allows remote attackers to slip arbitrary code into your sandbox. 🔥 Think of V8 like a high-tech delivery service that usually sorts packages by their contents. In this case, it mistakenly accepts the wrong type of package, letting a malicious one slip through and wreak havoc inside! 📦💥 If left unaddressed, an attacker could execute any code inside your Chrome environment. This means they could hijack sessions, steal data, or even deploy malware—quite the nightmare scenario for users and organizations alike!

Put simply

Think of V8 like a high-tech delivery service that usually sorts packages by their contents. In this case, it mistakenly accepts the wrong type of package, letting a malicious one slip through and wreak havoc inside! 📦💥 This type confusion vulnerability in V8 occurs when the engine mismanages data types, allowing attackers to exploit the sandbox and execute arbitrary code through crafted HTML pages.

What to do

If left unaddressed, an attacker could execute any code inside your Chrome environment. This means they could hijack sessions, steal data, or even deploy malware—quite the nightmare scenario for users and organizations alike! Immediately update Google Chrome to version 125.0.6422.60 or higher. Ensure your users are aware of the update and encourage them to check for browser updates regularly. Don't wait—this one is already being exploited! You've got this! Stay vigilant, update your systems, and keep the web a safer place. 🛡️

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.15236 · 96.8th percentile
Published
2024-05-15T20:42Z
KEV added
2024-05-20 · due 2024-06-10
EPSS history
Timeline
  • 20 MAY 00:00Z
    Added to CISA KEV — remediate by Jun 10
    kev
  • 15 MAY 20:42Z
    Type Confusion in V8 in Google Chrome prior to 125.0.6422.60 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page
    cvelistv5