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CVE-2026-18726

Open-iscsi: open-iscsi: denial of service in iscsiuio router advertisement parsing PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat Enterprise Linux 10affected
Red Hat / Red Hat Enterprise Linux 9affected

CWE

CWE-835

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.