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.
Metrics
Affected Vendors & Products
References
History
Wed, 12 Aug 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Open-iscsi: open-iscsi: denial of service in iscsiuio router advertisement parsing | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-835 | |
| CPEs | cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-08-12T21:13:47.604Z
Reserved: 2026-08-03T17:55:50.945Z
Link: CVE-2026-18726
No data.
Status : Received
Published: 2026-08-12T22:17:14.557
Modified: 2026-08-12T22:17:14.557
Link: CVE-2026-18726
No data.
OpenCVE Enrichment
Updated: 2026-08-13T02:15:02Z