CVE-2021-30883KEV · OVERDUE

Apple Multiple Products Memory Corruption Vulnerability

High · published August 24, 2021

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 7.8. It is confirmed in active exploitation. It sits in the 96.7th percentile for exploit probability.

1594
days past CISA
deadline
CVSS v3.1
7.8
EPSS
15%
Percentile
96.7
In the wild
Confirmed
What it is

🚨 A memory corruption issue could let an attacker run code with kernel privileges—an open invitation to wreak havoc on your device! 🍏 Think of it like a waiter who accidentally serves you someone else’s meal—suddenly, you have access to all the secrets of the chef’s special recipes! 🍽️ If exploited, an attacker could gain full control over your device, leading to devastating consequences like accessing sensitive information, modifying settings, or even installing malicious software without your consent. This is no small deal—it's like handing over the keys to your kingdom! 🔑

Put simply

Think of it like a waiter who accidentally serves you someone else’s meal—suddenly, you have access to all the secrets of the chef’s special recipes! 🍽️ CVE-2021-30883 involves a memory handling flaw in Apple's operating systems that allows applications to execute arbitrary code with elevated privileges. This vulnerability poses a serious risk, especially given the reports of active exploitation. ⚠️

What to do

If exploited, an attacker could gain full control over your device, leading to devastating consequences like accessing sensitive information, modifying settings, or even installing malicious software without your consent. This is no small deal—it's like handing over the keys to your kingdom! 🔑 Immediate action is crucial! Update your devices to the latest versions: iOS 15.0.2, iPadOS 15.0.2, macOS Monterey 12.0.1, or tvOS 15.1. Don’t delay—this is one you want patched ASAP! 💪 You’ve got this! Stay vigilant and keep your devices updated to fend off this threat. 🛡️

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.14721 · 96.7th percentile
Published
2021-08-24T18:49Z
KEV added
2022-05-23 · due 2022-06-13
EPSS history
Timeline
  • 23 MAY 00:00Z
    Added to CISA KEV — remediate by Jun 13
    kev
  • 24 AUG 18:49Z
    A memory corruption issue was addressed with improved memory handling
    cvelistv5