High severity7.8NVD Advisory· Published Apr 2, 2021· Updated Jun 17, 2026
CVE-2021-1738
CVE-2021-1738
Description
An out-of-bounds write 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 image may lead to arbitrary code execution.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: = 11.2
- Range: unspecified
Patches
Vulnerability mechanics
References
2- support.apple.com/en-us/HT212147nvdVendor Advisory
- support.apple.com/kb/HT212146nvdVendor Advisory
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