medium6.5
CVE-2026-18728
A flaw was found in open-iscsi.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Enterprise Linux | Versions 9.0, 10.0 |