CVE-2023-32439KEV · OVERDUE

Apple Multiple Products WebKit Type Confusion Vulnerability

High · published June 23, 2023

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 97.8th percentile for exploit probability.

1198
days past CISA
deadline
CVSS v3.1
8.8
EPSS
24%
Percentile
97.8
In the wild
Confirmed
What it is

🚨 A type confusion issue could let attackers run arbitrary code on your device! This one’s not just theoretical; it’s actively exploited. ⚡ Think of it like a restaurant that mislabels menu items—an unsuspecting diner picks a dish that looks safe, but it’s actually a spicy surprise! This vulnerability blurs the lines between data types, leading to potentially dangerous outcomes. An attacker could craft malicious web content that, once processed, allows them to execute any code they desire on your device. This means they could steal data, install malware, or even take complete control of the system—yikes! You definitely don't want to be on the receiving end of this one!

Put simply

Think of it like a restaurant that mislabels menu items—an unsuspecting diner picks a dish that looks safe, but it’s actually a spicy surprise! This vulnerability blurs the lines between data types, leading to potentially dangerous outcomes. This type confusion vulnerability arises when a system fails to correctly verify the type of data being processed, allowing attackers to exploit this flaw to execute arbitrary code. It affects various versions of iOS, iPadOS, and macOS, and could be triggered through crafted web content.

What to do

An attacker could craft malicious web content that, once processed, allows them to execute any code they desire on your device. This means they could steal data, install malware, or even take complete control of the system—yikes! You definitely don't want to be on the receiving end of this one! To protect yourself, immediately update your devices to the latest versions: iOS 16.5.1, iPadOS 16.5.1, iOS 15.7.7, iPadOS 15.7.7, and macOS Ventura 13.4.1. Additionally, ensure that Safari is updated to version 16.5.1. Don’t delay—this is important! You've got this! Stay safe by patching up and keeping your devices 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
0.23968 · 97.8th percentile
Published
2023-06-23T00:00Z
KEV added
2023-06-23 · due 2023-07-14
EPSS history
Timeline
  • 23 JUN 00:00Z
    Added to CISA KEV — remediate by Jul 14
    kev
  • 23 JUN 00:00Z
    A type confusion issue was addressed with improved checks
    cvelistv5