Notice USN-8729-5, published on September 25, 2026, covers vulnerabilities in the Linux kernel for AWS FIPS. According to the text, an attacker could potentially exploit the issues to compromise a system. The update fixes flaws across numerous components, including ARM32, ARM64 and PowerPC architectures, memory, IPv4 and IPv6 networking, Netfilter, Bluetooth, NTFS3 and SMB filesystems, io_uring and security modules. The notice also lists CVE identifiers, including CVE-2025-71289 and CVE-2026-23469.
The extensive subsystem list does not, by itself, establish which configurations or versions are affected in each environment. Consult the original USN-8729-5 notice from Ubuntu Security and compare its details with the kernel version and distribution in use; also confirm the vendor’s update guidance before taking action. If you use AI to study the notice or prepare an update, share only necessary technical information and remove internal data, credentials and personal identifiers.