CVE-2018-17480KEV · OVERDUE

Google Chromium V8 Out-of-Bounds Write Vulnerability

High · published December 11, 2018

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 98.5th percentile for exploit probability.

1584
days past CISA
deadline
CVSS v3.1
8.8
EPSS
36%
Percentile
98.5
In the wild
Confirmed
What it is

🚨 A crafty HTML page can unleash chaos in Google Chrome! This flaw lets attackers execute arbitrary code thanks to user-supplied JavaScript during array deserialization. ⚡ Think of it as a restaurant where patrons can place special orders that the kitchen follows to the letter, even if those requests are completely off the menu. If the chef isn’t vigilant, they might end up making something dangerous instead! An attacker could craft a seemingly innocent page that, once opened in Chrome, allows them to run any code they like inside the sandbox. This could lead to data breaches, remote control over your system, or even enabling further attacks. It's absolutely devastating!

Put simply

Think of it as a restaurant where patrons can place special orders that the kitchen follows to the letter, even if those requests are completely off the menu. If the chef isn’t vigilant, they might end up making something dangerous instead! CVE-2018-17480 is a vulnerability in the V8 engine of Google Chrome that enables the execution of arbitrary code due to improper handling of JavaScript during array deserialization. This flaw occurs in versions prior to 71.0.3578.80.

What to do

An attacker could craft a seemingly innocent page that, once opened in Chrome, allows them to run any code they like inside the sandbox. This could lead to data breaches, remote control over your system, or even enabling further attacks. It's absolutely devastating! Update Google Chrome immediately to version 71.0.3578.80 or later to patch this vulnerability. Regularly check for updates to stay protected against future threats and encourage users to be cautious of unknown links and pages. 🛡️ You can tackle this! Update now and keep your browsing experience safe and secure! 💪✨

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
0.35640 · 98.5th percentile
Published
2018-12-11T15:00Z
KEV added
2022-06-08 · due 2022-06-22
EPSS history
Timeline
  • 08 JUN 00:00Z
    Added to CISA KEV — remediate by Jun 22
    kev
  • 11 DEC 15:00Z
    Execution of user supplied Javascript during array deserialization leading to an out of bounds write in V8 in Google Chrome prior to 71.0.3578.80 allowed a…
    cvelistv5