What’s Vulnerable › Vulnerabilities
CVE-2021-1790
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.0% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-04-02 · updated 2026-06-17
- Weakness: CWE-125
Description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. Processing a maliciously crafted font may lead to arbitrary code execution.
Affected products
- macOS: from 10.15 before 10.15.7; 10.15.7, 10.15.7-security_update_2020-001, 10.15.7-supplemental_update — fixed in 10.15.7
- Apple macOS: from 11.0 before 11.2 — fixed in 11.2
How to fix
Upgrade to a fixed version: macOS 10.15.7; Apple macOS 11.2. Check the vendor advisory for mitigations.
References
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