CVE-2025-43300

high-risk
Published 2025-08-21

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.

Do I need to act?

~
2.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
!
CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
10
CVSS 10.0/10 Critical
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Apple

References (13)

Release Notes https://support.apple.com/en-us/124925
Release Notes https://support.apple.com/en-us/124926
Release Notes https://support.apple.com/en-us/124927
Release Notes https://support.apple.com/en-us/124928
Release Notes https://support.apple.com/en-us/124929
Release Notes https://support.apple.com/en-us/125141
Release Notes https://support.apple.com/en-us/125142
Mailing List http://seclists.org/fulldisclosure/2025/Sep/10
Mailing List http://seclists.org/fulldisclosure/2025/Sep/14
Mailing List http://seclists.org/fulldisclosure/2025/Sep/52
Exploit https://github.com/b1n4r1b01/n-days/blob/main/CVE-2025-43300.md
Issue Tracking https://github.com/cisagov/vulnrichment/issues/201
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-...
54
/ 100
high-risk
Severity 33/34 · Critical
Exploitability 12/34 · Low
Exposure 9/34 · Low