CVE-2020-9866

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CVSS 3.1

9.8 critical

EPSS

2%p79

Published

Oct 27, 2020 (Oct 27, 2020)

Modified

Jun 17, 2026

Description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. A buffer overflow may result in arbitrary code execution.

Vendors: apple
Products: mac os x
Weakness: CWE-120
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.9%)

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