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Apple security documents reference vulnerabilities by CVE-ID when possible.
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Released February 1, 2021
WebKit
Available for: macOS Catalina and macOS Mojave
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A use after free issue was addressed with improved memory management.
CVE-2021-1788: Francisco Alonso (@revskills)
WebKit
Available for: macOS Catalina and macOS Mojave
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A type confusion issue was addressed with improved state handling.
CVE-2021-1789: @S0rryMybad of 360 Vulcan Team
WebRTC
Available for: macOS Catalina and macOS Mojave
Impact: A malicious website may be able to access restricted ports on arbitrary servers
Description: A port redirection issue was addressed with additional port validation.
CVE-2021-1799: Gregory Vishnepolsky & Ben Seri of Armis Security, and Samy Kamkar