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Apple iOS/macOS CVE-2026-28977

| EUVD-2026-29276 MEDIUM
Buffer Overflow (CWE-119)
2026-05-11 apple GHSA-qmqx-qxq3-57q5
6.2
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

5
Analysis Generated
May 13, 2026 - 15:59 vuln.today
CVSS changed
May 13, 2026 - 15:52 NVD
6.2 (MEDIUM)
Patch available
May 11, 2026 - 22:18 EUVD
CVE Published
May 11, 2026 - 20:08 nvd
UNKNOWN (no severity yet)
CVE Published
May 11, 2026 - 20:08 nvd
MEDIUM 6.2

DescriptionNVD

The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing a maliciously crafted file may lead to unexpected app termination.

AnalysisAI

Improper bounds checking in Apple operating systems allows processing of maliciously crafted files to cause unexpected application termination (denial of service) on iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. The vulnerability affects multiple major OS versions and requires local file processing without user interaction, but has extremely low real-world exploitation probability (EPSS 0.02%) despite moderate CVSS score.

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CVE-2026-28977 vulnerability details – vuln.today

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