← CVE Intelligence

CVE-2026-18728

Open-iscsi: open-iscsi: integer underflow in iscsiuio ipv4 dhcp parsing PUBLISHED

Description (CNA)

A flaw was found in open-iscsi. An integer underflow vulnerability in the `iscsiuio` component, specifically during IPv4 Dynamic Host Configuration Protocol (DHCP) parsing, allows a remote attacker on the same local network segment to cause a denial of service. By sending a specially crafted IPv4/UDP DHCP reply, the attacker can trigger an out-of-bounds read, leading to the `iscsiuio` process crashing. This issue affects systems where `iscsiuio` is actively handling IPv4 DHCP traffic.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat Enterprise Linux 10affected
Red Hat / Red Hat Enterprise Linux 9affected

CWE

CWE-191

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.