Live › vulnerability › CVE-2020-27930
Go to dashboardApple's FontParser component in iOS, iPadOS, macOS and watchOS has a memory corruption bug triggered by a maliciously crafted font file. An attacker who gets a device to process that font can run code on it, and CISA lists it as actively exploited.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply updates per vendor instructions.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Apple Multiple Products | vendor | – | – |
Check the device OS version (Settings > General > About on iOS/iPadOS, About This Mac on macOS, Watch app on watchOS) and compare it to the patched release in Apple's security notes.
Update iOS, iPadOS, macOS and watchOS to a release that includes Apples fix for this CVE, per Apples vendor instructions.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watchOS 6.2.9, Security Update 2020-006 High Sierra, Security Update 2020-006 Mojave, iOS 14.2 and iPadOS 14.2, watchOS 5.3.9, macOS Catalina 10.15.7 Supplemental Update, macOS Catalina 10.15.7 Update. Processing a maliciously crafted font may lead to arbitrary code execution.
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