CVE-2026-18728

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. This issue affects systems where `iscsiuio` is actively handling IPv4 DHCP traffic.

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Produits concernés

• Red Hat Enterprise Linux 10
• Red Hat Enterprise Linux 9
• Redhat enterprise linux

Scores CVSS

Faiblesses (CWE)

• CWE-191

Références

• https://access.redhat.com/security/cve/CVE-2026-18728 Vendor AdvisoryMitigation
• https://bugzilla.redhat.com/show_bug.cgi?id=2463029 Issue TrackingVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories