CVE-2026-31431: CISA Adds Actively Exploited Linux Root Access Vulnerability to the KEV Catalog
CISA has added CVE-2026-31431—a critical Linux root access vulnerability with active exploitation—to its Known Exploited Vulnerabilities (KEV) catalog. The bug, exploitable via a simple proof-of-concept since 2017, opens the door to unauthenticated remote code execution under conditions common on production servers and offers reliable privilege escalation and persistence paths. That combination makes it unusually dangerous…