CVEvulnerability
CVE-2026-18728
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-08-13
- Last modified
- 2026-08-25
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-191
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.
Affected configurations
• redhat enterprise linux 9.0
• redhat enterprise linux 10.0
Related
Weakness · CWE (1)
- CWE-191 Integer Underflow (Wrap or Wraparound) weakness
References
- https://access.redhat.com/security/cve/CVE-2026-18728 Vendor Advisory, Mitigation
- https://bugzilla.redhat.com/show_bug.cgi?id=2463029 Issue Tracking, Vendor Advisory