CVE-2020-27950KEV · OVERDUE

Apple Multiple Products Memory Initialization Vulnerability

Medium · published December 8, 2020

Patch now

The score understates this — it's already being exploited

CVSS calls it medium at 5.5. It is confirmed in active exploitation. It sits in the 97.0th percentile for exploit probability.

1635
days past CISA
deadline
CVSS v3.1
5.5
EPSS
17%
Percentile
97.0
In the wild
Confirmed
What it is

⚠️ A memory initialization issue could let malicious apps peek where they shouldn't! This is a sneaky way to disclose kernel memory on your devices. 🔍 Think of it like a hotel room with a hidden camera—if someone gains access to the hidden area, they can see everything inside without you knowing it. In this case, the malicious application is that crafty guest snooping around your private space. This vulnerability could allow an attacker to access sensitive kernel memory, potentially exposing private data and system secrets. It's not an immediate catastrophe, but the risks are significant enough to warrant swift action.

Put simply

Think of it like a hotel room with a hidden camera—if someone gains access to the hidden area, they can see everything inside without you knowing it. In this case, the malicious application is that crafty guest snooping around your private space. CVE-2020-27950 involves a memory initialization flaw in macOS, iOS, and watchOS that allows unauthorized applications to disclose sensitive kernel memory. This kind of leakage could be exploited to gain insights into system operations and user data.

What to do

This vulnerability could allow an attacker to access sensitive kernel memory, potentially exposing private data and system secrets. It's not an immediate catastrophe, but the risks are significant enough to warrant swift action. To safeguard your devices, update immediately to macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2, or applicable security updates for older versions. Ensure your devices are running the latest available software to close this vulnerability. You've got this! A quick update now can keep your tech secure from prying eyes. 🛡️

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.16520 · 97.0th percentile
Published
2020-12-08T20:17Z
KEV added
2021-11-03 · due 2022-05-03
EPSS history
Timeline
  • 03 NOV 00:00Z
    Added to CISA KEV — remediate by May 3
    kev
  • 08 DEC 20:17Z
    A memory initialization issue was addressed
    cvelistv5