ShellCodeX Intelligence Brief
CRITICAL
Vulnerabilities
CVE-2026-64600 ReflfluxFS XFS race lets local users escalate to root
Source headline: New RefluXFS Linux flaw lets attackers gain root privileges
Threat level
Critical
Signal strength
85/100
Source confidence
1 source
Published
2 hours ago
Intelligence Summary
A nine-year race condition in the Linux kernel’s XFS filesystem has been assigned CVE-2026-64600. The flaw, referred to as ReflfluxFS, can allow local attackers to overwrite protected files. By abusing the race, an attacker may gain root privileges on affected systems. The issue impacts systems that use the vulnerable XFS code path in the Linux kernel. Users should update to patched kernel releases and review exposure for untrusted local users.
Recommended Action
Prioritize immediate review, validate exposure, and patch or mitigate affected systems.
Topics
Original reporting
BleepingComputer
New RefluXFS Linux flaw lets attackers gain root privileges
Open original source
