How severe is CVE-2020-9774?

CVE-2020-9774 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-9774 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9774?

CVE-2020-9774 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9774?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-9774 published?

CVE-2020-9774 was published on 2020-10-27 and last updated on 2026-06-17.

CVE-2020-9774

CVE-2020-9774 is a high-severity vulnerability in Apple Mac Os X with a CVSS 3.x base score of 7.5. 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-311.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-311
Affected product: Apple Mac Os X
Published: 2020-10-27
Last modified: 2026-06-17

Description

An issue existed with Siri Suggestions access to encrypted data. The issue was fixed by limiting access to encrypted data. This issue is fixed in macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra. Encrypted data may be inappropriately accessed.

Frequently asked questions

What is CVE-2020-9774?: An issue existed with Siri Suggestions access to encrypted data. The issue was fixed by limiting access to encrypted data. This issue is fixed in macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra. Encrypted data may be inappropriately accessed.
How severe is CVE-2020-9774?: CVE-2020-9774 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-9774 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9774?: CVE-2020-9774 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9774?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-9774 published?: CVE-2020-9774 was published on 2020-10-27 and last updated on 2026-06-17.

References

https://support.apple.com/en-us/HT210919

Affected products (1)

cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*

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