Published Oct 23, 2026Sources checked Oct 27, 2026
N/ACVSS not listedScore unavailable
What this means
Review the available evidence
CVE-2026-98966. 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 26, 2026
Release Notes
CISA KEVNot listedBased on the latest collected catalog
EPSS0.2%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is CVE-2026-98966?
In the Linux kernel, the following vulnerability has been resolved:
bonding: fix the program leak when XDP is replaced
We need to release the reference on the old BPF prog, whether we are going to no-prog, or replacing the prog with another.
Spotted by AI while running tests for the propagation series (leaked programs were accumulating). Selftest will come in the net-next series to avoid conflicts.