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Ios And Ipados CVE-2026-43807

| EUVDEUVD-2026-49481 CRITICAL
Classic Buffer Overflow (CWE-120)
2026-07-27 apple GHSA-h8v4-p36p-9mwj
9.8
CVSS 3.1 · Vendor: apple
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Severity by source

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 - 16:56 vuln.today
Patch available
Jul 27, 2026 - 21:17 EUVD
CVE Published
Jul 27, 2026 - 20:12 cve.org
UNKNOWN (no severity yet)
CVE Published
Jul 27, 2026 - 20:12 cve.org
CRITICAL 9.8

DescriptionCVE.org

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. A malicious accessory may be able to cause unexpected app termination.

AnalysisAI

Denial of service via unexpected app termination affects multiple Apple operating systems, including iOS, iPadOS, macOS, tvOS, watchOS, and visionOS, when processing a malicious accessory. The vulnerability stems from a buffer overflow (CWE-120) addressed with improved bounds checking in the latest updates. No active exploitation or public proof-of-concept is reported; EPSS score is low (0.18%), though the provided CVSS vector implies a critical network-based attack that does not align with the accessory requirement.

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CVE-2026-43807 vulnerability details – vuln.today

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