CVE-2026-98554Medium· 5.5▾ SunlitA flaw was found in the Linux kernel's virtual local area network (VLAN) driver. When processing network packets that lack sufficient reserved buffer space (headroom) before network headers are appended, the system triggers a panic conditi…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
Last analysed / modified upstream
0.2%
— → 5.5
none → medium
0.2% → 0.2%
A flaw was found in the Linux kernel's virtual local area network (VLAN) driver. When processing network packets that lack sufficient reserved buffer space (headroom) before network headers are appended, the system triggers a panic condition. An attacker could exploit this vulnerability to cause a Denial of Service (DoS) by crashing the system.
kernel: vlan: ensure sufficient headroom in vlan_dev_hard_header() — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-20.
Affected:
No fix planned:
Out of support scope
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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