Researcher Asim Manizada published working exploit code on September 18 for four Linux kernel local privilege escalation flaws, each letting a local user gain root. The bugs are DirtyAH6 in IPsec AH6, TUNderflow in TUN/TAP, PPPoEject in PPPoE, and DiagSpill in SCTP diagnostics. Kernel maintainers fixed all four in recent weeks after a coordinated hold with distributions, and no in-the-wild abuse has been reported. Three require unprivileged user namespaces, which many distributions enable by default, while DiagSpill needs only an available SCTP module. The exploits are tuned to specific builds and can crash machines, but public code raises risk on shared multi-user systems.
A researcher disclosed OVSwrap, a Linux kernel flaw in the Open vSwitch datapath that lets an ordinary local user gain root, and published a working exploit covering roughly 800 builds. Tracked as CVE-2026-64531, it is an integer wraparound in how Open vSwitch handles internally generated network action streams, giving a deterministic memory-corruption path. The attacker needs no existing switch, no running daemon, and no special privileges: where unprivileged user namespaces are enabled, they create a private namespace, gain network capabilities inside it, and reach the vulnerable code. The module can even auto-load on demand, so an empty module list does not mean safety. Default configurations of most major distributions tested as exploitable.
TrustStrike Labs