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Ios And Ipados CVE-2026-28931

| EUVDEUVD-2026-49422 HIGH
Classic Buffer Overflow (CWE-120)
2026-07-27 apple GHSA-qc34-g3j9-jc55
8.8
CVSS 3.1 · Vendor: apple
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Severity by source

Vendor (apple) PRIMARY
8.8 HIGH
AV:N/AC:L/PR:N/UI:R/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
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

7
Analysis Generated
Jul 28, 2026 - 19:05 vuln.today
Severity Changed
Jul 28, 2026 - 16:22 NVD
CRITICAL HIGH
CVSS changed
Jul 28, 2026 - 16:22 NVD
9.8 (CRITICAL) 8.8 (HIGH)
CVSS changed
Jul 28, 2026 - 14:37 NVD
9.8 (CRITICAL)
Patch available
Jul 27, 2026 - 21:17 EUVD
CVE Published
Jul 27, 2026 - 20:14 cve.org
HIGH 8.8
CVE Published
Jul 27, 2026 - 20:14 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, watchOS 26.6. Connecting to a malicious NFS server may lead to kernel memory corruption.

AnalysisAI

Kernel memory corruption in Apple XNU kernel allows a remote attacker to potentially execute arbitrary code or crash the system when a victim connects to a malicious NFS server. Affected are all Apple operating systems—iOS, iPadOS, macOS, tvOS, and watchOS—before version 26.6. No active exploitation or public exploit code has been observed, and EPSS indicates a low probability of widespread attacks.

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CVE-2026-28931 vulnerability details – vuln.today

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