Apple iOS/iPadOS/macOS up to 26.5.1 denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Apple iOS, iPadOS and macOS up to 26.5.1. Affected by this issue is some unknown functionality. The manipulation results in denial of service. This vulnerability is known as CVE-2026-43724. Attacking locally is a requirement. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Apple iOS, iPadOS and macOS up to 26.5.1. Affected is an unknown functionality. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

The issue was addressed with improved input sanitization. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination or write kernel memory.

The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2026-43724 since 05/02/2026. The exploitability is told to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/29/2026).

The vulnerability scanner Nessus provides a plugin with the ID 330143 (macOS 15.x < 15.7.8 Multiple Vulnerabilities (128071)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 26.5.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (330143). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 7.8
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 330143
Nessus Name: macOS 15.x < 15.7.8 Multiple Vulnerabilities (128071)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: iOS/iPadOS/macOS 26.5.2

Timelineinfo

05/02/2026 CVE reserved
06/29/2026 +58 days VulDB entry created
06/30/2026 +0 days Advisory disclosed
07/29/2026 +29 days VulDB entry last update

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2026-43724 (🔒)
GCVE (CVE): GCVE-0-2026-43724
GCVE (VulDB): GCVE-100-374760
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 06/30/2026 01:13
Updated: 07/29/2026 18:57
Changes: 06/30/2026 01:13 (56), 07/04/2026 16:01 (11), 07/28/2026 02:43 (2), 07/29/2026 18:57 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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