CVE-2020-9866

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.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
appleCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 78%
VendorProductVersion
applemac_os_x
𝑥
< 10.15.6
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://support.apple.com/en-us/HT211289
https://support.apple.com/en-us/HT211289