CVE-2026-115486

High

Description

A flaw was found in the iscsiuio component of open-iscsi. The IPv6 Neighbor Discovery handler accesses link-layer address options at a fixed offset without verifying the packet contains them. Additionally, the ARP table is updated unconditionally with attacker-controlled addresses from the packet headers. An attacker on the same network segment can send a minimal Neighbor Advertisement to poison the ARP table and redirect network traffic.

SeverityHigh
CVSS7.1
Exploit probability—
ProductMicrosoft Azl3 Iscsi-initiator-utils
PublishedOct 23, 2026
First seenOct 23, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
microsoft azl3_iscsi-initiator-utils_2.1.12-1No range specified—

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