Published Oct 23, 2026Sources checked Oct 23, 2026
N/ACVSS not listedScore unavailable
What this means
Review the available evidence
CVE-2026-98873. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
What to do next
Remediation and response
Microsoft Security Response Center guidance
Vendor revision: Oct 24, 2026
Release Notes
CISA KEVNot listedBased on the latest collected catalog
EPSSUnavailableNo current score collected
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is CVE-2026-98873?
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_expect: zero at allocation time
There are occasional LLM hints wrt. leaking uninitialized data to userspace via ctnetlink. Just zero at allocation time, expectations are not frequently used these days.
Intentionally keeps _init as-is because we could theoretically support re-init, so add the missing exp->dir there.