CVE-2026-28967

Denial‑of‑Service via Improper Input Validation in iOS/iPadOS

Published May 11, 2026 CVSS 3.1 · 4.9 Medium EPSS < 1% KEV · Not listed
Description
A denial-of-service issue was addressed with improved input validation. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4. 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 via 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-20
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Weaknesses CWE-400
Metrics cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
Title Denial-of-Service Vulnerability in iOS and iPadOS Due to Improper Input Validation
First Time appeared Apple
Apple ios And Ipados
Weaknesses CWE-20
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 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4. 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
Mar 3, 2026, 4:36 PM
Status
Analyzed
Published
May 11, 2026, 9:18 PM
Modified
Oct 26, 2026, 6:10 PM