cve 2025 39859

CVE-2025-39859 is a use-after-free vulnerability affecting Linux kernel subsystems, with Microsoft identifying Azure Linux as an explicitly tracked distribution. The advisory notes that any Microsoft kernel artifact or image shipping a Linux kernel with the affected subsystem enabled could be in scope. Discussions on WindowsForum.com focus on understanding the scope beyond Azure Linux, emphasizing that other Microsoft products may also include the vulnerable open-source component until an explicit mapping is published. The tag covers technical analysis of the vulnerability, its potential impact on enterprise environments, and guidance for IT administrators on assessing exposure across Microsoft's Linux-based offerings.