Vulnerability · Published Dec 8, 2020 · Assigned by apple

CVE-2020-27898

Medium 5.5

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 1.0% (higher than 63% of all known vulnerabilities).

Severity (CVSS NVD)5.5Medium

Exploit odds (30 days)1.0%top 36.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A denial of service issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.0.1. An attacker may be able to bypass Managed Frame Protection.

Affected products (as reported)

Vendor	Product	Versions
Apple	macOS	unspecified – before 11.0

References

https://support.apple.com/en-us/HT211931 x_refsource_MISC
https://support.apple.com/kb/HT212011 x_refsource_CONFIRM
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
20201215 APPLE-SA-2020-12-14-3 macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave mailing-list, x_refsource_FULLDISC