CVE-2026-99999
Review this vulnerability's source-backed evidence, with unavailable values and read failures kept distinct.
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Detection and validation
Mapped metadata availability only. These signals do not change priority.
Sigma
Not mapped by tracked sources.
Atomic
Not mapped by tracked sources.
Nuclei
Not mapped by tracked sources.
What it is
ReportedIn the Linux kernel, the following vulnerability has been resolved: ipv4: validate checksum_start before completing checksum If a packet with bad checksum metadata gets into the ipv4 stack, skb_checksum_help can corrupt the network header and cause a bunch of mischief. This was discovered and reported by Paulos, and has been reporoduced by others independently since. We really shouldn't allow such packets in, but as a defence in depth measure, let's also check before we complete the checksum. A more complete validation at input is forthcoming, but needs more work.
Source reported · Source: CVE record · Source last published: · Source description excerpt; complete tracked detail loads below. · Source last updated:
What is affected
ReportedLinux; Linux. Product-level identification only; no affected-version conclusion is available from this field.
Source reported · Source: CVE record · Source last published: · Source last updated:
Urgency and basis
ReportedAct · 445.6
Tracker computed · Tracker decision tier from the evidence detailed below · Source last updated:
Exploitation evidence
Reportedlisted by a tracked exploitation catalog · VulnCheck KEV
Source reported · VulnCheck KEV added: · Source last updated:
What to do
ReportedApply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Source reported · Tracked source remediation field · Source last updated:
Evidence detail
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