use-after-free

18-Year-Old Linux SCTP Flaw Could Let Local Users Gain Root and Escape Containers
An 18-year-old use-after-free vulnerability in Linux's SCTP networking code, tracked as CVE-2026-64564 and named SCTPhantom, has been patched. The flaw, present since 2008, could allow local users to gain root privileges and escape containerized environments. Researchers from Tencent successfully demonstrated root access and container escape on several Linux distributions.

ZDI-26-397: X.Org Server CreateSaverWindow Use-After-Free Information Disclosure Vulnerability
A local privilege escalation vulnerability has been discovered in X.Org Server, specifically within the handling of ScreenSaverScreenPrivateRec objects. This flaw allows attackers with low-privileged access to disclose sensitive information and potentially execute arbitrary code as root by exploiting the server's failure to validate object existence before operations. An update has been released to address this issue.