CVE-2020-27930VulnerabilityPublished 11/03/2021Updated 10/24/2026

CVE-2020-27930: Apple Multiple Products Memory Corruption Vulnerability

Affects Apple Multiple ProductsSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 11/03/2021
KEV deadline: 05/03/2022
EPSS: 22.0% chance of exploitation in 30 days – higher than 97% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2020-27930 (opens in a new tab)

Description

A memory corruption vulnerability exists in the FontParser component of multiple Apple products including iOS, iPadOS, macOS, and watchOS. This flaw may allow an attacker to execute arbitrary code when processing a maliciously crafted font. The vulnerability has been exploited in the wild. No specific affected versions or patch information is provided in the available data.

Summary

CVE-2020-27930 is a memory corruption vulnerability in the FontParser module affecting multiple Apple operating systems: iOS, iPadOS, macOS, and watchOS. The vulnerability could enable code execution if a maliciously crafted font is processed. Exploitation in the wild has been confirmed. The vulnerability is categorized under CWE-787 (Out-of-bounds Write). No explicit patch or remediation details are provided in the input data.

Impact

Successful exploitation of this vulnerability may lead to arbitrary code execution on affected Apple devices. This can compromise device integrity and security. The vulnerability has been observed in active exploitation scenarios, indicating a real-world threat.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users and administrators should monitor Apple security advisories for updates and apply patches promptly once available.

Weaknesses

CWE-787Out-of-bounds Write (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 09:41:32 UTC

Weaknesses

References

Related threats