CVE-2020-9944

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS...

5.5 Medium

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, tvOS 14.0, iOS 14.0 and iPadOS 14.0. An application may be able to read restricted memory.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

1.15%Up 0.9 points since Apr 14, 2021

What each source reports

NVD Score used 5.5

Record: CVE-2020-9944
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness: CWE-125
Updated: 2026-11-02

CVE List No score

Record: CVE-2020-9944
Updated: 2026-11-02

EUVDEUVD-2020-30723 No score

Record: EUVD-2020-30723
Updated: 2026-11-03

GitHub AdvisoriesGHSA-vj42-7xv9-r62v 5.5

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS...

Record: GHSA-vj42-7xv9-r62v
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness: CWE-125
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 10, 2026	facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-9944 is a medium vulnerability (CVSS 5.5) in Apple Ipados, published December 8, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.15%, the 67th percentile. No source names a fixed version.