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EPSS 0.8%top 47%

CVE-2026-28983: A remote attacker may be able to cause a denial of service in Apple iOS and iPadOS

0
High
VulnerabilityCVE-2026-28983cvecve-2026-28983
Published: 05/11/2026 (05/11/2026, 20:08:48 UTC)
Source: CVE Database V5
Vendor/Project: Apple
Product: iOS and iPadOS

Description

A type confusion issue was addressed with improved checks. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. A remote attacker may be able to cause a denial of service.

CVSS v3.1

Score 7.5high

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

Affected software

Affected versions
=0<18.7.9<26.5

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/30/2026, 00:53:10 UTC

Technical Analysis

This vulnerability involves a type confusion flaw in Apple iOS and iPadOS that could be exploited remotely to cause a denial of service condition. Apple fixed the issue by implementing improved type checking in iOS 18.7.9, iOS 26.5, and related OS versions. The CVSS 3.1 vector indicates the attack requires no privileges or user interaction and can be executed remotely over the network, impacting availability only. The vulnerability is tracked as CWE-843 (Type Confusion).

Potential Impact

A remote attacker can cause a denial of service on affected Apple devices running vulnerable versions of iOS and iPadOS. The impact is limited to availability disruption without confidentiality or integrity loss. No known exploits have been observed in the wild.

Mitigation Recommendations

The vulnerability is fixed in iOS 18.7.9, iOS 26.5, iPadOS 18.7.9, iPadOS 26.5, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, and watchOS 26.5. Users and administrators should apply these official updates to remediate the issue. Patch status is confirmed by the vendor advisory. No additional mitigation steps are indicated.

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Technical Details

Data Version
5.2
Assigner Short Name
apple
Date Reserved
2026-03-03T16:36:03.993Z
Cvss Version
null
State
PUBLISHED
Remediation Level
null

Threat ID: 6a028760cbff5d86108b6731

Added to database: 05/12/2026, 01:50:24 UTC

Last enriched: 07/30/2026, 00:53:10 UTC

Last updated: 07/31/2026, 21:26:47 UTC

Views: 84

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