CVE-2016-2853

CVE-2016-2853 describes a privilege escalation vulnerability in the aufs module of Linux kernel versions 3.x and 4.x. This flaw allows a local attacker to gain elevated privileges by exploiting improper mount namespace restrictions, specifically by mounting an aufs filesystem over a FUSE filesystem and executing a malicious setuid program. The vulnerability is rated as High severity (CVSS 7.8), indicating a low attack complexity and the potential for complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation in the wild (KEV, Hot List inactive), exploit code is publicly available on ExploitDB (EDB-41761), though community discussion and media coverage are minimal.