CVE-2020-27909

HIGHNVD 7.87.8—

7.8

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.2 and iPadOS 14.2, tvOS 14.2, watchOS 7.1. Processing a maliciously crafted audio file may lead to arbitrary code execution.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 67.3%
KEV: Not listed

Published

December 8, 2020

Last Modified

November 21, 2024

References (12)

product-security@applehttp://seclists.org/fulldisclosure/2020/Dec/32
product-security@applehttps://support.apple.com/en-us/HT211928
product-security@applehttps://support.apple.com/en-us/HT211929
product-security@applehttps://support.apple.com/en-us/HT211930
product-security@applehttps://support.apple.com/kb/HT211931
product-security@applehttps://www.zerodayinitiative.com/advisories/ZDI-21-374/
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Dec/32
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT211928
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT211929
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT211930
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT211931
af854a3a-2127-422b-91ae-364da2661108https://www.zerodayinitiative.com/advisories/ZDI-21-374/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-125Out-of-bounds Read

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-06 13:46 UTCepss_batch
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Frequently asked(5)

What is CVE-2020-27909?

CVE-2020-27909 is a high vulnerability published on December 8, 2020. An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.2 and iPadOS 14.2, tvOS 14.2, watchOS 7.1. Processing a maliciously crafted audio file may lead to arbitrary code execution.

When was CVE-2020-27909 disclosed?

CVE-2020-27909 was first published in the National Vulnerability Database on December 8, 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-2020-27909 actively exploited?

CVE-2020-27909 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 67.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-27909?

CVE-2020-27909 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2020-27909?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-27909, 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-2020-27909

📅 Published

🔄 Last Modified

🔗 References (12)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-27909?

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Published

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References (12)

Frequently asked(5)

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