NVD

CVE-2025-43400 Detail

Modified

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

Current Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in watchOS 26.1, tvOS 26.1. Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory.

View Analysis Description

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

ADP: CISA-ADP

Base Score: 6.3 MEDIUM

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://seclists.org/fulldisclosure/2025/Sep/73	CVE
http://seclists.org/fulldisclosure/2025/Sep/76	CVE
http://seclists.org/fulldisclosure/2025/Sep/78	CVE
https://support.apple.com/en-us/125637	Apple Inc.
https://support.apple.com/en-us/125639	Apple Inc.

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	CISA-ADP

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

CVE Modified by Apple Inc. 11/03/2025 9:15:46 PM

Action	Type	Old Value	New Value
Changed	Description	An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sonoma 14.8.1, macOS Tahoe 26.0.1, macOS Sequoia 15.7.1, visionOS 26.0.1, iOS 26.0.1 and iPadOS 26.0.1, iOS 18.7.1 and iPadOS 18.7.1. Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory.	An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in watchOS 26.1, tvOS 26.1. Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory.
Added	Reference		https://support.apple.com/en-us/125637
Added	Reference		https://support.apple.com/en-us/125639
Removed	Reference	https://support.apple.com/en-us/125326
Removed	Reference	https://support.apple.com/en-us/125327
Removed	Reference	https://support.apple.com/en-us/125328
Removed	Reference	https://support.apple.com/en-us/125329
Removed	Reference	https://support.apple.com/en-us/125330
Removed	Reference	https://support.apple.com/en-us/125338
Removed	Reference Type	https://support.apple.com/en-us/125326 Types: Release Notes, Vendor Advisory
Removed	Reference Type	https://support.apple.com/en-us/125327 Types: Release Notes, Vendor Advisory
Removed	Reference Type	https://support.apple.com/en-us/125328 Types: Release Notes, Vendor Advisory
Removed	Reference Type	https://support.apple.com/en-us/125329 Types: Release Notes, Vendor Advisory
Removed	Reference Type	https://support.apple.com/en-us/125330 Types: Release Notes, Vendor Advisory
Removed	Reference Type	https://support.apple.com/en-us/125338 Types: Release Notes, Vendor Advisory

Initial Analysis by NIST 9/30/2025 1:12:46 PM

Action	Type	New Value
Added	CPE Configuration	OR cpe:2.3:o:apple:macos::::::::* versions from (including) 14.0 up to (excluding) 14.8.1 cpe:2.3:o:apple:macos::::::::* versions from (including) 15.0 up to (excluding) 15.7.1 cpe:2.3:o:apple:macos:26.0::::::: cpe:2.3:o:apple:visionos::::::::* versions up to (excluding) 26.0.1 cpe:2.3:o:apple:ipados::::::::* versions up to (excluding) 18.7.1 cpe:2.3:o:apple:ipados:26.0::::::: cpe:2.3:o:apple:iphone_os:26.0::::::: cpe:2.3:o:apple:iphone_os::::::::* versions up to (excluding) 18.7.1
Added	Reference Type	Apple Inc.: https://support.apple.com/en-us/125326 Types: Release Notes, Vendor Advisory
Added	Reference Type	Apple Inc.: https://support.apple.com/en-us/125327 Types: Release Notes, Vendor Advisory
Added	Reference Type	Apple Inc.: https://support.apple.com/en-us/125328 Types: Release Notes, Vendor Advisory
Added	Reference Type	Apple Inc.: https://support.apple.com/en-us/125329 Types: Release Notes, Vendor Advisory
Added	Reference Type	Apple Inc.: https://support.apple.com/en-us/125330 Types: Release Notes, Vendor Advisory
Added	Reference Type	Apple Inc.: https://support.apple.com/en-us/125338 Types: Release Notes, Vendor Advisory

New CVE Received from Apple Inc. 9/29/2025 2:15:31 PM

Action	Type	New Value
Added	Description	An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sonoma 14.8.1, macOS Tahoe 26.0.1, macOS Sequoia 15.7.1, visionOS 26.0.1, iOS 26.0.1 and iPadOS 26.0.1, iOS 18.7.1 and iPadOS 18.7.1. Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory.
Added	Reference	https://support.apple.com/en-us/125326
Added	Reference	https://support.apple.com/en-us/125327
Added	Reference	https://support.apple.com/en-us/125328
Added	Reference	https://support.apple.com/en-us/125329
Added	Reference	https://support.apple.com/en-us/125330
Added	Reference	https://support.apple.com/en-us/125338

Quick Info

CVE Dictionary Entry:
CVE-2025-43400
NVD Published Date:
09/29/2025
NVD Last Modified:
11/04/2025
Source:
Apple Inc.

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2025-43400 Detail

Current Description

Analysis Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CVE 11/04/2025 5:16:15 PM

CVE Modified by Apple Inc. 11/03/2025 9:15:46 PM

CVE Modified by CVE 11/03/2025 2:16:05 PM

Initial Analysis by NIST 9/30/2025 1:12:46 PM

CVE Modified by CISA-ADP 9/29/2025 3:15:35 PM

New CVE Received from Apple Inc. 9/29/2025 2:15:31 PM

Quick Info