DEBIAN-CVE-2026-18728

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Source
https://security-tracker.debian.org/tracker/CVE-2026-18728
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18728.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-18728
Upstream
  • CVE-2026-18728
Published
2026-08-13T04:17:19Z
Modified
2026-09-14T17:02:50Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:12 / open-iscsi

Package

Name
open-iscsi
Purl
pkg:deb/debian/open-iscsi?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.1.8-1
2.1.8-2
2.1.9-1
2.1.9-2
2.1.9-3
2.1.9-4
2.1.10-1
2.1.10-2
2.1.10-3
2.1.11-1
2.1.11-2
2.1.11-3
2.1.11-4
2.1.11-5
2.1.11-6
2.1.12-1
2.1.12-2
2.1.13-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18728.json"

Debian:13 / open-iscsi

Package

Name
open-iscsi
Purl
pkg:deb/debian/open-iscsi?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.1.11-1
2.1.11-1+deb13u1
2.1.11-1+deb13u2
2.1.11-2
2.1.11-3
2.1.11-4
2.1.11-5
2.1.11-6
2.1.12-1
2.1.12-2
2.1.13-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18728.json"

Debian:14 / open-iscsi

Package

Name
open-iscsi
Purl
pkg:deb/debian/open-iscsi?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.1.13-1

Affected versions

2.*
2.1.11-1
2.1.11-2
2.1.11-3
2.1.11-4
2.1.11-5
2.1.11-6
2.1.12-1
2.1.12-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18728.json"