CVEvulnerability

CVE-2025-43300

10.0 CRITICAL Known exploited Published 2025-08-21 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability — Apple iOS, iPadOS, and macOS

Apple iOS, iPadOS, and macOS contain an out-of-bounds write vulnerability in the Image I/O framework.

Added to KEV
2025-08-21
Remediation due
2025-09-11
Ransomware use
Unknown
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://support.apple.com/en-us/124925 ; https://support.apple.com/en-us/124926 ; https://support.apple.com/en-us/124927 ; https://support.apple.com/en-us/124928 ; https://support.apple.com/en-us/124929 ; https://nvd.nist.gov/vuln/detail/CVE-2025-43300
Status
Analyzed
Published
2025-08-21
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-787

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS 15.8.5, iOS 16.7.12 and iPadOS 16.7.12, iOS 18.6.2 and iPadOS 18.6.2, iPadOS 17.7.10, macOS Sequoia 15.6.1, macOS Sonoma 14.7.8, macOS Ventura 13.7.8. Processing a malicious image file may result in memory corruption. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals.

Affected configurations

• apple ipados (< 15.8.5) • apple ipados (>= 16.0 < 16.7.12) • apple ipados (>= 17.0 < 17.7.10) • apple ipados (>= 18.0 < 18.6.2) • apple iphone os (< 15.8.5) • apple iphone os (>= 16.0 < 16.7.12) • apple iphone os (>= 17.0 < 18.6.2) • apple macos (>= 13.0 < 13.7.8) • apple macos (>= 14.0 < 14.7.8) • apple macos (>= 15.0 < 15.6.1)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References