CVE-2018-1111

Exp

DHCP packages in Red Hat Enterprise Linux 6 and 7, Fedora 28, and earlier are vulnerable to a command injection flaw in the NetworkManager integration script included in the DHCP client. A malicious DHCP server, or an attacker on the local network able to spoof DHCP responses, could use this flaw to execute arbitrary commands with root privileges on systems using NetworkManager and configured to obtain network configuration using the DHCP protocol.

Published: 2018-05-17 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-1111 is rated High Exploit Risk (78.9/100): CVSS High severity, with high exploitation likelihood (EPSS 88.23%, 99th percentile). 4 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-1111

EDB-ID Source Kind Published Link
44890 exploit_db edb 2018-06-13 Exploit-DB ↗
44652 exploit_db edb 2018-05-18 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-1111

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-20 89.18% 88.23% -0.95%
2 2026-03-04 88.84% 89.18% +0.34%
3 2026-03-01 — 88.84% —

Full EPSS history (60 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-1111

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.6 5.9 [email protected]
7.5 3.0 HIGH
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.6 5.9 [email protected]
7.9 2.0 HIGH
AV:A/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 5.5 10.0 [email protected]

Weakness enumeration for CVE-2018-1111

OS Trackers for CVE-2018-1111

vendor priority summary link
redhat critical — https://access.redhat.com/security/cve/CVE-2018-1111

Affected software / configurations for CVE-2018-1111

Vendor Product Version Raw CPE
fedoraproject fedora 26 cpe:2.3:o:fedoraproject:fedora:26:*:*:*:*:*:*:*
fedoraproject fedora 27 cpe:2.3:o:fedoraproject:fedora:27:*:*:*:*:*:*:*
fedoraproject fedora 28 cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*
redhat enterprise_virtualization 4.0 cpe:2.3:a:redhat:enterprise_virtualization:4.0:*:*:*:*:*:*:*
redhat enterprise_virtualization 4.2 cpe:2.3:a:redhat:enterprise_virtualization:4.2:*:*:*:*:*:*:*
redhat enterprise_virtualization_host 4.0 cpe:2.3:a:redhat:enterprise_virtualization_host:4.0:*:*:*:*:*:*:*
redhat enterprise_linux 6.0 cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
redhat enterprise_linux 6.4 cpe:2.3:o:redhat:enterprise_linux:6.4:*:*:*:*:*:*:*
redhat enterprise_linux 6.5 cpe:2.3:o:redhat:enterprise_linux:6.5:*:*:*:*:*:*:*
redhat enterprise_linux 6.6 cpe:2.3:o:redhat:enterprise_linux:6.6:*:*:*:*:*:*:*
redhat enterprise_linux 6.7 cpe:2.3:o:redhat:enterprise_linux:6.7:*:*:*:*:*:*:*
redhat enterprise_linux 7.0 cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
redhat enterprise_linux 7.2 cpe:2.3:o:redhat:enterprise_linux:7.2:*:*:*:*:*:*:*
redhat enterprise_linux 7.3 cpe:2.3:o:redhat:enterprise_linux:7.3:*:*:*:*:*:*:*
redhat enterprise_linux 7.4 cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:*
redhat enterprise_linux 7.5 cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 6.0 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 6.0 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 6.0 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

References for CVE-2018-1111

URL Tags
http://www.securityfocus.com/bid/104195 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1040912 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:1453 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1454 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1455 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1456 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1457 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1458 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1459 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1460 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1461 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1524 Vendor Advisory
https://access.redhat.com/security/vulnerabilities/3442151 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1111 Issue Tracking Vendor Advisory
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CDCLLCHYFFXW354HMB5QBXOQOY5BH2EJ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IDJA4QRR74TMXW34Q3DYYFPVBYRTJBI7/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QMTTB54QNTPD2SK6UL32EVQHMZP6BUUD/
https://www.exploit-db.com/exploits/44652/ Exploit Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/44890/ Exploit Third Party Advisory VDB Entry
https://www.tenable.com/security/tns-2018-10
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