CVE-2026-115486

HIGH

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.

CVSS v3.1 Score

7.1
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
LOW
Published: 10/23/2026Modified: 10/23/2026

Related Intelligence (1)

HIGHVulnerability

NVD HIGH: CVE-2026-115486 — A flaw was found in the iscsiuio component of open-iscsi. The IPv6 Neighbor Disc...

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 t

CVE-2026-115486
NIST NVD

References (2)

https://access.redhat.com/security/cve/CVE-2026-115486https://bugzilla.redhat.com/show_bug.cgi?id=2556267