Medium severity5.5NVD Advisory· Published Sep 8, 2021· Updated Jun 17, 2026
CVE-2021-1883
CVE-2021-1883
Description
This issue was addressed with improved checks. This issue is fixed in Security Update 2021-004 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, Security Update 2021-003 Catalina, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted server messages may lead to heap corruption.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7(expand)+ 1 more
- (no CPE)
- (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/HT212530nvdVendor Advisory
- support.apple.com/en-us/HT212531nvdVendor Advisory
News mentions
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