High severity7.8NVD Advisory· Published Sep 8, 2021· Updated Jun 17, 2026
CVE-2021-1881
CVE-2021-1881
Description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted font file may lead to arbitrary code execution.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7<11.3+ 1 more
- (no CPE)range: <11.3
- (no CPE)range: unspecified
- Range: <14.5
- Range: <14.5
- Range: unspecified
- Range: unspecified
- Range: unspecified
Patches
Vulnerability mechanics
References
6- support.apple.com/en-us/HT212317nvdVendor Advisory
- support.apple.com/en-us/HT212323nvdVendor Advisory
- support.apple.com/en-us/HT212324nvdVendor Advisory
- support.apple.com/en-us/HT212325nvdVendor Advisory
- support.apple.com/en-us/HT212326nvdVendor Advisory
- support.apple.com/en-us/HT212327nvdVendor Advisory
News mentions
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