CVE-2023-32435KEV · OVERDUE

Apple Multiple Products WebKit Memory Corruption 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 97.7th percentile for exploit probability.

1197
days past CISA
deadline
CVSS v3.1
8.8
EPSS
23%
Percentile
97.7
In the wild
Confirmed
What it is

🚨 A memory corruption quirk in Apple's software could let attackers execute code just by processing web content — talk about a surprise guest at the party! ⚡ Think of this as a waiter who trusts any order without checking if the ingredients are safe — one misstep could lead to a disastrous dish. In tech terms, this means malicious web content can trigger unwanted actions on your device, just like an unverified recipe could ruin your dinner. With this vulnerability, an attacker could potentially take full control of your device, modify data, or even install malicious software. If you're using an affected version of iOS before 15.7, you could be opening the door to an unwelcome guest — not a fun scenario!

Put simply

Think of this as a waiter who trusts any order without checking if the ingredients are safe — one misstep could lead to a disastrous dish. In tech terms, this means malicious web content can trigger unwanted actions on your device, just like an unverified recipe could ruin your dinner. This memory corruption issue arises from improper state management during web content processing, enabling arbitrary code execution. The flaw allows attackers to exploit a vulnerability in versions of iOS prior to 15.7, leading to possible remote code execution.

What to do

With this vulnerability, an attacker could potentially take full control of your device, modify data, or even install malicious software. If you're using an affected version of iOS before 15.7, you could be opening the door to an unwelcome guest — not a fun scenario! Immediately update your devices to macOS Ventura 13.3, Safari 16.4, iOS 16.4, or iPadOS 16.4 (or 15.7.7). If you manage devices in your organization, ensure all users are alerted to this critical update. Regularly check for updates to keep your software secure! You've got this! Just follow the steps, and you'll have your devices fortified in no time! 🛡️

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
0.22951 · 97.7th 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 memory corruption issue was addressed with improved state management
    cvelistv5