EUVD-2026-49450
Out-of-bounds Read (CWE-125)
GHSA-g7x9-qq7j-x3gx
9.8
CVSS 3.1 · Vendor: apple
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Vendor (apple)
PRIMARY
9.8
CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from Vendor (apple) · only source for this CVE.
CVSS VectorVendor: apple
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
4
Analysis Generated
Jul 28, 2026 - 16:50 vuln.today
Patch available
Jul 27, 2026 - 21:17 EUVD
CVE Published
Jul 27, 2026 - 20:14 cve.org
UNKNOWN (no severity yet)
CVE Published
Jul 27, 2026 - 20:14 cve.org
CRITICAL 9.8
DescriptionCVE.org
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.
AnalysisAI
Unexpected system termination in macOS prior to Sequoia 15.7.8, Sonoma 14.8.8, or Tahoe 26.6 allows a local application to trigger a denial-of-service via an out-of-bounds read. No active exploitation or public exploit is known, and EPSS indicates a low exploitation probability. The high CVSS score likely overstates the risk, as only a crash is confirmed in the description.
Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Buffer Overflow
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External POC / Exploit Code
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