Critical 9.2Published May 21, 2026

CVE-2026-9054Invalid IP packets cause a kernel panic

Updated under an hour ago (Oct 26, 2026, 6:10 PM ET)

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It affects 9front. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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

CVSS: 9.2 CRITICAL (v4.0, CNA)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
Weakness (CWE): CWE-130
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: 9front
NVD analysis: Deferred
Record last updated: May 22, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

9front 9front 9front:9front (from the name)	863431cff8b47fa20625f4cbee3ea4e92367b152 builds before 70c97c334171c715df82774d1a47638abaca2db4	CNA record

References

References

https://git.9front.org/plan9front/9front/7838d68969549f938cc8e80c0c2b4218cb12805c/commit.html	mitigation
https://git.9front.org/plan9front/9front/f86917b75e9562f90545b7e484dbdcd748236952/commit.html	mitigation
https://git.9front.org/plan9front/9front/70c97c334171c715df82774d1a47638abaca2db4/commit.html	mitigation

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.