Apple has released AirPort Base Station Firmware Update 7.91 to address multiple vulnerabilities in AirPort Extreme and AirPort Time Capsule Base Station routers.
The security update fixes eight vulnerabilities in all, to include two that could result in remote code execution (CVE-2019-8572 and CVE-2019-8578), two denial of service (CVE-2019-7291 and CVE-2018-6918) and four others.
The update should be applied to AirPort Extreme and AirPort Time Capsule base stations with 802.11ac.