macOS · macOS update · August 20, 2025

Sequoia 15.6.1

Sequoia 15.6.1, released August 20, 2025, fixes 1 CVE in Sequoia. One of them is being exploited (CVE-2025-43300); 1 on CISA KEV. Patch Radar priority: Patch now.

Patch now1 on CISA KEV

CVEs closed

1 rated Critical

Exploited

CVE-2025-43300

Highest CVSS

10.0

Base score, 0 to 10

Highest EPSS

0.6516

99th percentile

Applies to

Product	Version
Sequoia	15.6.1

CVEs this fix closes

Priority	CVE	Title	Impact	CVSS	EPSS	Exploitation
Patch now	CVE-2025-43300	ImageIO: 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.	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.	10.0	0.6516	KEVExploited

Other Sequoia versions with security fixes

Vendor advisory

https://support.apple.com/en-us/124927

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