Vulnerability · Published Dec 8, 2020 · Assigned by apple

CVE-2020-9942

Medium 4.3

In plain English

A medium-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 1.2% (higher than 68% of all known vulnerabilities).

Severity (CVSS NVD)4.3Medium

Exploit odds (30 days)1.2%top 32.2% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

An inconsistent user interface issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, Safari 13.1.2. Visiting a malicious website may lead to address bar spoofing.

Affected products (as reported)

Vendor	Product	Versions
Apple	Safari	unspecified – before 13.1
Apple	macOS	unspecified – before 11.0

References

https://support.apple.com/en-us/HT211292 x_refsource_MISC
https://support.apple.com/en-us/HT211931 x_refsource_MISC
20201215 APPLE-SA-2020-12-14-4 Additional information for APPLE-SA-2020-11-13-1 macOS Big Sur 11.0.1 mailing-list, x_refsource_FULLDISC