{"schemaVersion":3,"id":"CVE-2026-18728","aliases":["UBUNTU-CVE-2026-18728","DEBIAN-CVE-2026-18728"],"status":"published","duplicateOf":null,"title":null,"description":"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. 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