Dashboard / CVE-2026-18728

CVE-2026-18728

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 58/100
Published: 2026-08-13 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. 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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
redhat enterprise_linux 9.0
redhat enterprise_linux 10.0

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2463029
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

58 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.31%
Raw Score 0.003120
Percentile 24.5%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00312
2026-11-13
0.00312
2026-11-12
0.00312
2026-11-10
0.00312
2026-11-09
0.00312
2026-11-08
0.00312
2026-11-07
0.00312
2026-11-06
0.00312
2026-11-05
0.00312

Intelligence Sources

mitre ref →
nvd ref →

External Links