CVE-2018-1111

HIGHNVD 7.59.0▲
EchelonGraph scoreMEDIUM confidence

Score elevated to 9.0 because EPSS predicts 98% probability of exploitation within the next 30 days (top 0.1% of all CVEs). NVD baseline CVSS 7.5 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Weaponized
7.5
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 98%
CISA-KEV: Not listedEPSS: 98%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
7.5
EG Score
9.0(medium)
EG Risk
84(Track)
EG Risk 84/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation98% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
99.9%
KEV
Not listed

Published

May 17, 2018

Last Modified

November 21, 2024

References (42)

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatdhcp-12:4.2.5-47.el7_3.12018-05-15redhat
redhatdhcp-12:4.2.5-58.el7_4.42018-05-15redhat
redhatredhat-virtualization-host-0:4.2-20180508.02018-05-15redhat
redhatrhvm-appliance-0:4.2-20180504.02018-05-15redhat
redhatdhcp-12:4.1.1-34.P1.el6_4.22018-05-15redhat
redhatdhcp-12:4.1.1-43.P1.el6_6.22018-05-15redhat
redhatdhcp-12:4.1.1-49.P1.el6_7.12018-05-15redhat
redhatdhcp-12:4.2.5-68.el7_5.12018-05-15redhat
redhatdhcp-12:4.1.1-53.P1.el6_9.42018-05-15redhat
redhatdhcp-12:4.1.1-38.P1.el6_5.12018-05-15redhat
redhatdhcp-12:4.2.5-42.el7_2.12018-05-15redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(11)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 2× in last 7d / 12× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 01:32 UTCEG score recompute
  2. 2026-07-22 22:12 UTCEG score recompute
  3. 2026-07-15 16:55 UTCEPSS rescore
  4. 2026-07-15 16:55 UTCEPSS rescore
  5. 2026-07-13 06:10 UTCEPSS rescore
  6. 2026-07-01 15:03 UTCEPSS rescore
  7. 2026-07-01 15:03 UTCEPSS rescore
  8. 2026-06-24 14:02 UTCEPSS rescore
  9. 2026-06-24 14:02 UTCEPSS rescore
  10. 2026-06-23 21:30 UTCEPSS rescore
  11. 2026-06-23 21:30 UTCEPSS rescore
  12. 2026-06-23 21:30 UTCEPSS rescore
  13. 2026-06-17 17:50 UTCEPSS rescore
  14. 2026-06-17 17:50 UTCEPSS rescore
  15. 2026-06-15 17:45 UTCEPSS rescore
  16. 2026-06-14 23:15 UTCEPSS rescore
  17. 2026-06-14 23:14 UTCEPSS rescore
  18. 2026-06-12 23:09 UTCEPSS rescore
  19. 2026-06-12 23:09 UTCEPSS rescore
  20. 2026-06-10 22:16 UTCEPSS rescore
  21. 2026-06-10 13:19 UTCEPSS rescore
  22. 2026-06-06 13:45 UTCEPSS rescore
  23. 2026-06-06 13:45 UTCEPSS rescore
  24. 2026-06-05 22:45 UTCEPSS rescore
  25. 2026-06-05 22:45 UTCEPSS rescore
Show 12 more
  1. 2026-06-05 06:08 UTCEPSS rescore
  2. 2026-06-05 06:08 UTCEPSS rescore
  3. 2026-06-01 13:50 UTCEPSS rescore
  4. 2026-06-01 13:50 UTCEPSS rescore
  5. 2026-05-29 13:41 UTCEPSS rescore
  6. 2026-05-28 13:42 UTCEPSS rescore
  7. 2026-05-28 13:42 UTCEPSS rescore
  8. 2026-05-28 08:02 UTCEG score recompute
  9. 2026-05-28 08:02 UTCVendor advisory
  10. 2026-05-28 08:02 UTCGHSA enrichment
  11. 2026-05-26 07:17 UTCEPSS rescore
  12. 2026-05-26 07:17 UTCEPSS rescore

Publicly available exploits

(5 references)

Working exploit code is in the public domain (1 Metasploit module) (2 GitHub PoCs) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-44890✓ verified
    First seen Jun 13, 2018

    DHCP Client - Command Injection 'DynoRoot' (Metasploit)

    Open source ↗
  • Exploit-DBEDB-44652✓ verified
    First seen May 18, 2018

    DynoRoot DHCP Client - Command Injection

    Open source ↗
  • GitHub PoCkkirsche/CVE-2018-1111
    First seen May 18, 2018

    CVE-2018-1111 DynoRoot

    Open source ↗
  • GitHub PoCknqyf263/CVE-2018-1111
    First seen May 17, 2018

    Environment for DynoRoot (CVE-2018-1111)

    Open source ↗
  • Metasploitexploit/unix/dhcp/rhel_dhcp_client_command_injection✓ verified
    First seen May 15, 2018

    DHCP Client Command Injection (DynoRoot)

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2018-1111?
CVE-2018-1111 is a high vulnerability published on May 17, 2018. 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…
When was CVE-2018-1111 disclosed?
CVE-2018-1111 was first published in the National Vulnerability Database on May 17, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-1111 actively exploited?
CVE-2018-1111 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-1111?
CVE-2018-1111 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
How do I remediate CVE-2018-1111?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-1111, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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