CVE-2026-86921

Local File Overwrite Vulnerability Due to Improper Permissions Validation

Published Oct 20, 2026 CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Description
A permissions issue was addressed with improved validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. A local attacker may be able to overwrite restricted files.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Apple ipados
Apple iphone Os
CPEs cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
Vendors & Products Apple ipados
Apple iphone Os
Type Values Removed Values Added
Title Local File Overwrite Vulnerability Due to Improper Permissions Validation
Type Values Removed Values Added
Title Local File Overwrite via Permissions Issue on Apple Operating Systems
Weaknesses CWE-284
Type Values Removed Values Added
Title Local File Overwrite via Permissions Issue on Apple Operating Systems
Weaknesses CWE-269
CWE-284
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Apple visionos
Vendors & Products Apple
Apple ios And Ipados
Apple macos
Apple visionos
Type Values Removed Values Added
Description A permissions issue was addressed with improved validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. A local attacker may be able to overwrite restricted files.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Oct 26, 2026, 8:37 PM
Reserved
Sep 8, 2026, 4:43 PM
Status
Analyzed
Published
Oct 20, 2026, 1:17 AM
Modified
Nov 9, 2026, 1:42 PM