Published Oct 23, 2026Sources checked Oct 29, 2026
7.6HIGHCVSS out of 10
What this means
Review the available evidence
CVE-2026-115484 and is rated High severity with a CVSS score of 7.6. 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 29, 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-2026-115484?
A flaw was found in the iscsiuio component of open-iscsi. The DHCPv4 option parser incorrectly calculates the length of the options data, causing it to read beyond the allocated buffer into adjacent heap memory.
An attacker on the same network segment can send a crafted DHCP response to crash the daemon or corrupt its network configuration.