vulnerability 18-Year-Old Linux SCTP Flaw Could Let Local Users Gain Root and Escape Containers A 18-year-old vulnerability in Linux's SCTP networking code allows local users to gain root access on a host, potentially escaping containers. Tencent researchers discovered and demonstrated this flaw, which has existed since 2008, and a related vulnerability was patched just days before. While no public exploit code e… The Hacker News · Aug 7, 2026 High CVE-2026-64564CHlinuxsctpuse-after-free