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CVE-2025-43300

CRITICAL KEV CISA Exploitation: ACTIVE
10.0
CVSS 3.1
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.

Metadata

CVE ID
CVE-2025-43300
State
PUBLISHED
Assigner
apple
Reserved
2025-04-16 15:24 UTC
Published
2025-08-21 00:27 UTC
Last updated
2026-04-02 18:17 UTC
Primary CWE
CWE-787
CWE-787 Out-of-bounds Write
Vendor / Product
Apple / iOS and iPadOS
Sources
cve.org  ·  NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
ACTIVE
Automatable
yes
Tech. Impact
total
CISA Known Exploited Vulnerability
Vulnerability name
Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability
Vendor
Apple
Product
iOS, iPadOS, and macOS
Added to KEV
2025-08-21
Due date
2025-09-11
Ransomware
Not known
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.
CISA description
Apple iOS, iPadOS, and macOS contain an out-of-bounds write vulnerability in the Image I/O framework.
Affected products (3)
VendorProductPlatformVersions
Apple iOS and iPadOS 0 < 15.8.5, 0 < 16.7.12, 0 < 18.6.2
Apple iPadOS 0 < 17.7.10
Apple macOS 0 < 13.7.8, 0 < 14.7.8, 0 < 15.6.1
Weakness (CWE)
CWESourceDescription
cna 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.
CWE-787 adp CWE-787 Out-of-bounds Write
CVSS scores (1)
ScoreSeverityVersionSourceVector
10.0 CRITICAL 3.1 adp CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
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