CVE-2026-18727
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
58/100
Published: 2026-08-12
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Adjacent
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Adjacent
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
A flaw was found in open-iscsi's iscsiuio component. This vulnerability involves an integer underflow and out-of-bounds read during Dynamic Host Configuration Protocol for IPv6 (DHCPv6) packet parsing. Specifically, crafted DHCPv6 Advertise traffic with a short User Datagram Protocol (UDP) length can cause the DHCPv6 payload length to underflow. An unauthenticated attacker on an adjacent network segment can exploit this by sending specially crafted IPv6 UDP traffic while the client is in an active DHCPv6 exchange, leading to a denial of service due to a process crash or service disruption.
Weakness Classification (1)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| redhat | enterprise_linux | 9.0 |
| redhat | enterprise_linux | 10.0 |
References & Advisories (2)
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT