Vulnerability · Published Apr 2, 2021 · Assigned by apple

CVE-2020-27945

High 7.8

In plain English

A high-severity security flaw in macOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 55% of all known vulnerabilities).

Severity (CVSS NVD)7.8High

Exploit odds (30 days)0.8%top 44.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Apple	macOS	unspecified – before 11.0
Apple	macOS	unspecified – before 11.2

References

https://support.apple.com/en-us/HT211931 x_refsource_MISC
https://support.apple.com/en-us/HT212147 x_refsource_MISC