{"schemaVersion":3,"id":"CVE-2026-18727","aliases":["UBUNTU-CVE-2026-18727","DEBIAN-CVE-2026-18727"],"status":"published","duplicateOf":null,"title":"Open-iscsi: open-iscsi: integer underflow in iscsiuio dhcpv6 parsing","description":"A flaw was found in open-iscsi's iscsiuio component. This vulnerability involves an integer underflow and out-of-bounds read during Dynamic Host Configuration Protocol for IPv6 (DHCPv6) packet parsing. Specifically, crafted DHCPv6 Advertise traffic with a short User Datagram Protocol (UDP) length can cause the DHCPv6 payload length to underflow. 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