CVE-2026-86963

Denial of Service from Improper Input Validation in iOS/iPadOS

Published Oct 20, 2026 CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Description
A denial-of-service issue was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27. An attacker in a privileged network position may be able to cause a denial-of-service.

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:*:*:*:*:*:*:*:*
Vendors & Products Apple ipados
Apple iphone Os
Type Values Removed Values Added
Title Denial of Service from Improper Input Validation in iOS/iPadOS
Type Values Removed Values Added
Title Denial-of-Service Vulnerability in iOS and iPadOS Due to Improper Input Validation
Weaknesses CWE-730
Type Values Removed Values Added
Title Denial-of-Service Vulnerability in iOS and iPadOS Due to Improper Input Validation
Weaknesses CWE-20
CWE-730
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

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
Vendors & Products Apple
Apple ios And Ipados
Type Values Removed Values Added
Description A denial-of-service issue was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27. An attacker in a privileged network position may be able to cause a denial-of-service.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Oct 26, 2026, 8:39 PM
Reserved
Sep 8, 2026, 4:43 PM
Status
Analyzed
Published
Oct 20, 2026, 1:17 AM
Modified
Nov 5, 2026, 8:16 PM