How severe is CVE-2020-27901?

CVE-2020-27901 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-27901 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27901?

CVE-2020-27901 affects Apple Macos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27901?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-27901 published?

CVE-2020-27901 was published on 2021-04-02 and last updated on 2026-06-17.

CVE-2020-27901

CVE-2020-27901 is a medium-severity vulnerability in Apple Macos with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Apple Macos
Published: 2021-04-02
Last modified: 2026-06-17

Description

A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1. A sandboxed process may be able to circumvent sandbox restrictions.

Frequently asked questions

What is CVE-2020-27901?: A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1. A sandboxed process may be able to circumvent sandbox restrictions.
How severe is CVE-2020-27901?: CVE-2020-27901 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-27901 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27901?: CVE-2020-27901 affects Apple Macos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27901?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-27901 published?: CVE-2020-27901 was published on 2021-04-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

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