medium6.5
CVE-2026-18726
A flaw was found in open-iscsi.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Enterprise Linux | Versions 9.0, 10.0 |