CVE-2021-30813

CVE-2021-30813 is a medium-severity vulnerability in Apple Macos with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

This issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.0.1. A person with access to a host Mac may be able to bypass the Login Window in Remote Desktop for a locked instance of macOS.

Frequently asked questions

What is CVE-2021-30813?
This issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.0.1. A person with access to a host Mac may be able to bypass the Login Window in Remote Desktop for a locked instance of macOS.
How severe is CVE-2021-30813?
CVE-2021-30813 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-30813 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-30813?
CVE-2021-30813 affects Apple Macos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-30813?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-30813 published?
CVE-2021-30813 was published on 2021-10-28 and last updated on 2026-06-17.

References

Affected products (1)

More vulnerabilities in Apple Macos

All CVEs affecting Apple Macos →