CVE-2020-9974

5.5 MEDIUM 1% exploit odds Fix listed

What it is

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.2 and iPadOS 14.2, tvOS 14.2, watchOS 7.1. A malicious application may be able to determine kernel memory layout.

At a glance

Exploitability: Can be exploited locally on the machine without logging in, but needs a user to act. High risk of data exposure.
Exploit odds: 1.1% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2020-12-08 20:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:28 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.1% in the next 30 days (EPSS).
Severity: 5.5 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2020-12-08 20:15 UTC
Last modified: 2026-06-17 03:28 UTC
Exploit probability: 1.1% · EPSS, next 30 days
Record status: Modified

Affected

Apple Ipados < 14.2
Apple Iphone Os < 14.2
Apple Mac Os X < 11.0.1
Apple Tvos < 14.2
Apple Watchos < 7.1

Attack profile CVSS 3.1 · 5.5

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Raw vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-9974.md and follow it. Check whether this project is affected by CVE-2020-9974. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record