CVE-2025-43400CWE-787

CVE-2025-43400

Medium · published September 29, 2025

CVSS v3.1
6.3
EPSS
7%
Percentile
94.1
In the wild
Unconfirmed
What it is

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.1 and iPadOS 18.7.1, iOS 26.0.1 and iPadOS 26.0.1, macOS Sequoia 15.7.1, macOS Sonoma 14.8.1, macOS Tahoe 26.0.1, tvOS 26.1, visionOS 26.0.1, watchOS 26.1. Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.06960 · 94.1th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2025-09-29T22:15Z
Affected products (8)
ProductVersionsFixed in
apple/ipados< 18.7.118.7.1
apple/ipadosall versions—
apple/iphone_os< 18.7.118.7.1
apple/iphone_osall versions—
apple/macos≥ 14.0, < 14.8.114.8.1
apple/macos≥ 15.0, < 15.7.115.7.1
apple/macosall versions—
apple/visionos< 26.0.126.0.1
References (11)
https://support.apple.com/en-us/125326 · [email protected]https://support.apple.com/en-us/125327 · [email protected]https://support.apple.com/en-us/125328 · [email protected]https://support.apple.com/en-us/125329 · [email protected]https://support.apple.com/en-us/125330 · [email protected]https://support.apple.com/en-us/125338 · [email protected]https://support.apple.com/en-us/125637 · [email protected]https://support.apple.com/en-us/125639 · [email protected]http://seclists.org/fulldisclosure/2025/Sep/73 · af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2025/Sep/76 · af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2025/Sep/78 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 29 SEP 18:03Z
    An out-of-bounds write issue was addressed with improved bounds checking
    cvelistv5