CVE-2020-9864

CRITICALNVD 9.89.8

9.8

A logic issue was addressed with improved restrictions. This issue is fixed in macOS Catalina 10.15.6. An application may be able to execute arbitrary code with kernel privileges.

CVSS v3: 9.8
EG Score: 9.8(low)
EPSS: 78.8%
KEV: Not listed

Published

October 16, 2020

Last Modified

November 21, 2024

References (2)

product-security@applehttps://support.apple.com/HT211289
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/HT211289

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-29 13:42 UTCEPSS rescore

Frequently asked(5)

What is CVE-2020-9864?

CVE-2020-9864 is a critical vulnerability published on October 16, 2020. A logic issue was addressed with improved restrictions. This issue is fixed in macOS Catalina 10.15.6. An application may be able to execute arbitrary code with kernel privileges.

When was CVE-2020-9864 disclosed?

CVE-2020-9864 was first published in the National Vulnerability Database on October 16, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-9864 actively exploited?

CVE-2020-9864 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 78.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-9864?

CVE-2020-9864 has a CVSS v3 base score of 9.8 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..

How do I remediate CVE-2020-9864?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-9864, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2020-9864

📅 Published

🔄 Last Modified

🔗 References (2)