New Fragnesia Linux Kernel LPE Vulnerability Disclosed

📌 A new Linux kernel local privilege escalation (LPE) vulnerability, dubbed Fragnesia, has been disclosed, allowing local attackers to gain root access. The flaw, tracked as CVE-2026-46300 with a CVSS score of 7.8, stems from a page cache corruption issue in the kernel’s XFRM subsystem. Fragnesia is the third such vulnerability identified in the Linux kernel within two weeks, following earlier variants of the Dirty Frag bug. No specific affected kernel versions or patch release dates were provided. The impact enables unauthorized privilege escalation to root-level access on vulnerable systems.