CVE-2020-9956

moderate-risk
Published 2021-04-02

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, tvOS 14.0, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, watchOS 7.0, iOS 14.0 and iPadOS 14.0. Processing a maliciously crafted font file may lead to arbitrary code execution.

Do I need to act?

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0.40% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (19)

Affected Vendors

Apple

References (10)

Vendor Advisory https://support.apple.com/en-us/HT211843
Vendor Advisory https://support.apple.com/en-us/HT211844
Vendor Advisory https://support.apple.com/en-us/HT211850
Vendor Advisory https://support.apple.com/en-us/HT211931
Vendor Advisory https://support.apple.com/en-us/HT212011
Vendor Advisory https://support.apple.com/en-us/HT211843
Vendor Advisory https://support.apple.com/en-us/HT211844
Vendor Advisory https://support.apple.com/en-us/HT211850
Vendor Advisory https://support.apple.com/en-us/HT211931
Vendor Advisory https://support.apple.com/en-us/HT212011
44
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 1/34 · Minimal
Exposure 19/34 · Moderate