Cybersecuritynews iconCybersecuritynewsSep 18, 2026

Linux Kernel Hit by Four Privilege Escalation Flaws Enabling Root Access

Four newly disclosed Linux kernel vulnerabilities could allow local attackers to corrupt kernel memory and escalate privileges to root on affected systems. The flaws, named DirtyAH6, TUNderflow, PPPoEject, and DiagSpill, affect long-standing networking code and have now received upstream fixes.

Linux Kernel Hit by Four Privilege Escalation Flaws Enabling Root Access

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Four newly disclosed Linux kernel vulnerabilities could allow local attackers to corrupt kernel memory and escalate privileges to root on affected systems.

The flaws, named DirtyAH6, TUNderflow, PPPoEject, and DiagSpill, affect long-standing networking code and have now received upstream fixes.

The vulnerabilities are tracked as CVE-2026-80844, CVE-2026-81000, CVE-2026-68121, and CVE-2026-74469.

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The useful part

Four newly disclosed Linux kernel vulnerabilities could allow local attackers to corrupt kernel memory and escalate privileges to root on affected systems. The flaws, named DirtyAH6, TUNderflow, PPPoEject, and DiagSpill, affect long-standing networking code and have now received upstream fixes. The vulnerabilities are tracked as CVE-2026-80844, CVE-2026-81000, CVE-2026-68121, and CVE-2026-74469.

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DirtyAH6, tracked as CVE-2026-80844, affects […]

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