Critical severity9.8NVD Advisory· Published Jul 27, 2026· Updated Aug 17, 2026
CVE-2026-43809
CVE-2026-43809
Description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4- Range: 18.7.10
- Range: 18.7.10
- Range: 15.7.8
Patches
Vulnerability mechanics
References
4- support.apple.com/en-us/128067nvdRelease NotesVendor Advisory
- support.apple.com/en-us/128071nvdRelease NotesVendor Advisory
- support.apple.com/en-us/128072nvdRelease NotesVendor Advisory
- support.apple.com/en-us/148287nvd
News mentions
3- Apple Releases 25 macOS Security Patches, Including CUPS Privilege Escalation FlawVypr Intelligence · Jul 27, 2026
- Apple Patches 25 macOS Vulnerabilities in Single July 2026 DisclosureVypr Intelligence · Jul 27, 2026
- macOS Tahoe: 25 Security Flaws Patched in Single July 2026 DisclosureVypr Intelligence · Jul 27, 2026