CVE-2025-43400

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-43400
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.

6.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://support.apple.com/en-us/125637
https://support.apple.com/en-us/125639
http://seclists.org/fulldisclosure/2025/Sep/73
http://seclists.org/fulldisclosure/2025/Sep/76
http://seclists.org/fulldisclosure/2025/Sep/78
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:26.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:26.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:26.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
History

04 Nov 2025, 22:16

Type Values Removed Values Added
References
  • () http://seclists.org/fulldisclosure/2025/Sep/73 -
  • () http://seclists.org/fulldisclosure/2025/Sep/76 -

04 Nov 2025, 02:15

Type Values Removed Values Added
References
  • {'url': 'https://support.apple.com/en-us/125326', 'tags': ['Release Notes', 'Vendor Advisory'], 'source': 'product-security@apple.com'}
  • {'url': 'https://support.apple.com/en-us/125327', 'tags': ['Release Notes', 'Vendor Advisory'], 'source': 'product-security@apple.com'}
  • {'url': 'https://support.apple.com/en-us/125328', 'tags': ['Release Notes', 'Vendor Advisory'], 'source': 'product-security@apple.com'}
  • {'url': 'https://support.apple.com/en-us/125329', 'tags': ['Release Notes', 'Vendor Advisory'], 'source': 'product-security@apple.com'}
  • {'url': 'https://support.apple.com/en-us/125330', 'tags': ['Release Notes', 'Vendor Advisory'], 'source': 'product-security@apple.com'}
  • {'url': 'https://support.apple.com/en-us/125338', 'tags': ['Release Notes', 'Vendor Advisory'], 'source': 'product-security@apple.com'}
  • () https://support.apple.com/en-us/125637 -
  • () https://support.apple.com/en-us/125639 -
Summary (en) 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. (en) 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.

03 Nov 2025, 19:16

Type Values Removed Values Added
References
  • () http://seclists.org/fulldisclosure/2025/Sep/78 -

30 Sep 2025, 17:12

Type Values Removed Values Added
CPE cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:26.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:26.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:26.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
First Time Apple
Apple ipados
Apple macos
Apple visionos
Apple iphone Os
References () https://support.apple.com/en-us/125326 - () https://support.apple.com/en-us/125326 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/125327 - () https://support.apple.com/en-us/125327 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/125328 - () https://support.apple.com/en-us/125328 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/125329 - () https://support.apple.com/en-us/125329 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/125330 - () https://support.apple.com/en-us/125330 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/125338 - () https://support.apple.com/en-us/125338 - Release Notes, Vendor Advisory

29 Sep 2025, 19:15

Type Values Removed Values Added
CWE CWE-787
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.3

29 Sep 2025, 18:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-09-29 18:15

Updated : 2025-11-04 22:16

NVD link : CVE-2025-43400

Mitre link : CVE-2025-43400

CVE.ORG link : CVE-2025-43400

JSON object : View

Products Affected

apple

  • iphone_os
  • macos
  • visionos
  • ipados
CWE
CWE-787

Out-of-bounds Write