vulnerability

OS X update for CFNetwork Cache (CVE-2020-27945)

Try Surface Command

Back to search

Severity	CVSS	Published	Added	Modified
7	(AV:N/AC:M/Au:N/C:P/I:P/A:P)	Feb 19, 2021	Feb 19, 2021	Aug 13, 2025

Severity

CVSS

(AV:N/AC:M/Au:N/C:P/I:P/A:P)

Published

Feb 19, 2021

Added

Feb 19, 2021

Modified

Aug 13, 2025

Description

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, macOS Big Sur 11.0.1. Processing maliciously crafted web content may lead to arbitrary code execution.

Solutions

apple-osx-security-update-2021-001-catalinaapple-osx-security-update-2021-001-mojaveapple-osx-upgrade-11_0_1

References

CVE-2020-27945
https://attackerkb.com/topics/CVE-2020-27945
CWE-190
URL-https://support.apple.com/kb/HT211931
URL-https://support.apple.com/kb/HT212147

NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.

Try it today