Invalid IP packets cause a kernel panic

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-9054
StatePUBLISHED
Assigner9front
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-22 04:16:28 UTC
Updated2026-05-22 04:16:28 UTC
DescriptionAn attacker sending tcp, il, rudp, rudp, or gre packets with a length less than the header size would trigger a kernel panic.

Risk And Classification

Primary CVSS: v4.0 9.2 CRITICAL from 1d66c9f9-fff2-411a-aa19-ca6312fa25e9

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:X/U:X

EPSS: 0.000520000 probability, percentile 0.166470000 (date 2026-05-28)

Problem Types: CWE-130 CWE-130 Improper Handling of Length Parameter Inconsistency

VersionSourceTypeScoreSeverityVector
4.01d66c9f9-fff2-411a-aa19-ca6312fa25e9Secondary9.2CRITICALCVSS: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/C...
4.0CNACVSS9.2CRITICALCVSS: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/A...

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
High

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA 9front 9front affected Plan 9 4e 70c97c334171c715df82774d1a47638abaca2db4 git x86, ARM, 64 bit, 32 bit

References

ReferenceSourceLinkTags
git.9front.org/plan9front/9front/f86917b75e9562f90545b7e484dbdcd748236952/co... 1d66c9f9-fff2-411a-aa19-ca6312fa25e9 git.9front.org
git.9front.org/plan9front/9front/70c97c334171c715df82774d1a47638abaca2db4/co... 1d66c9f9-fff2-411a-aa19-ca6312fa25e9 git.9front.org
git.9front.org/plan9front/9front/7838d68969549f938cc8e80c0c2b4218cb12805c/co... 1d66c9f9-fff2-411a-aa19-ca6312fa25e9 git.9front.org
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