CVE-2026-9054 PUBLISHED

Invalid IP packets cause a kernel panic

Assigner: 9front
Reserved: 19.05.2026 Published: 22.05.2026 Updated: 22.05.2026

An attacker sending tcp, il, rudp, rudp, or gre packets with a length less than the header size would trigger a kernel panic.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:A/AU:Y/R:A
CVSS Score: 9.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

Vendor	9front
Product	9front
Versions	Default: unaffected affected from Plan 9 4e to 70c97c334171c715df82774d1a47638abaca2db4 (excl.)