Apple visionOS/watchOS/iOS/iPadOS up to 26.0 Kernel Memory memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$5k-$25k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Apple visionOS, watchOS, iOS and iPadOS up to 26.0. The impacted element is an unknown function of the component Kernel Memory Handler. Executing a manipulation can lead to memory corruption. This vulnerability is handled as CVE-2025-43447. It is possible to launch the attack on the local host. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Apple visionOS, watchOS, iOS and iPadOS up to 26.0 and classified as critical. This vulnerability affects an unknown part of the component Kernel Memory Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.1 and iPadOS 26.1, watchOS 26.1, macOS Tahoe 26.1, visionOS 26.1. An app may be able to cause unexpected system termination or corrupt kernel memory.

The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2025-43447 since 04/16/2025. The exploitation appears 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 $5k-$25k (estimation calculated on 12/18/2025).

Upgrading to version 26.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-2475). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Apple macOS

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: visionOS/watchOS/iOS/iPadOS 26.1

Timelineinfo

04/16/2025 CVE reserved
11/04/2025 +202 days Advisory disclosed
11/04/2025 +0 days VulDB entry created
12/18/2025 +44 days VulDB entry last update

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2025-43447 (🔒)
GCVE (CVE): GCVE-0-2025-43447
GCVE (VulDB): GCVE-100-331096
CERT Bund: WID-SEC-2025-2475 - Apple macOS: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 11/04/2025 08:06
Updated: 12/18/2025 07:28
Changes: 11/04/2025 08:06 (57), 11/15/2025 11:04 (7), 12/18/2025 07:28 (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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