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CVE-2026-28842

HIGH CVSS 3.1: 7.5 EPSS 0.04%
Updated Mar 26, 2026
Apple
Parameter Value
CVSS 7.5 (HIGH)
Affected Versions before 26.4
Fixed In 26.4
Type CWE-120 (Buffer Copy without Checking Size), CWE-122 (Heap-based Buffer Overflow)
Vendor Apple
Public PoC No

The issue was addressed with improved bounds checks. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Apple Macos
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
26.4