CVE-2026-18726

Description

A flaw was found in open-iscsi. This vulnerability allows a remote attacker on the same local network segment to cause a Denial of Service (DoS) in the iscsiuio daemon. By sending a specially crafted Internet Control Message Protocol version 6 (ICMPv6) Router Advertisement with a zero-length option, the attacker can trigger an infinite loop. This leads to sustained CPU usage, rendering the daemon unresponsive and impacting system availability. A secondary risk of out-of-bounds reads exists with a short IPv6 payload, though no memory corruption or data exposure has been confirmed.

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Produits concernés

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

Scores CVSS

Faiblesses (CWE)

• CWE-835

Références

• https://access.redhat.com/security/cve/CVE-2026-18726 Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2462331 Issue Tracking

Ailleurs

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