CVE-2016-5362

HIGHNVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 3.4%, top 12% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 8.2Exploit: None knownExposed: 0

A fix is available — apply it.

The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended DHCP-spoofing protection mechanism and consequently cause a denial of service or intercept network traffic via a crafted DHCP discovery message.

CVSS v3
8.2
EG Score
8.2(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity82% × 45%
Exploitation3% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
3%
EPSS %ILE
88%
KEV
Not listed

Published

June 17, 2016

Last Modified

June 17, 2026

Advisory Details (9)

Auto-updated Sep 7, 2026
Patch available. Sources: redhat.
generic

oss-security - CVE request for vulnerability in OpenStack Neutron

http://www.openwall.com/lists/oss-security/2016/06/10/5
generic

OSSA-2016-009: Neutron IPTables firewall anti-spoof protection bypass — OpenStack Security Advisories 0.0.1.dev390 documentation

https://security.openstack.org/ossa/OSSA-2016-009.html
generic
https://review.openstack.org/#/c/303572/
generic
https://review.openstack.org/#/c/303563/
generic
https://review.openstack.org/#/c/300202/
generic

Bug #1558658 “[OSSA-2016-009] Security Groups do not prevent MAC...” : Bugs : neutron

https://bugs.launchpad.net/neutron/+bug/1558658
redhat Patch Available
https://access.redhat.com/errata/RHSA-2016:1474
redhat Patch Available
https://access.redhat.com/errata/RHSA-2016:1473
generic

oss-security - Re: CVE request for vulnerability in OpenStack Neutron

http://www.openwall.com/lists/oss-security/2016/06/10/6

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatopenstack-neutron-0:2015.1.4-2.el7ost2016-07-20redhat
redhatopenstack-neutron-1:7.0.4-11.el7ost2016-07-20redhat

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.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
neutron—2:8.1.2-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
neutron—2:8.1.2-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
neutron—2:8.1.2-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
neutron—2:8.1.2-1—
PyPI(1)
PackageVulnerable rangeFixed inDependents
neutron0.08.1.1—

Weakness Classification(1)

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

All Vendor Advisories

(2)

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 6× in last 7d / 18× 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.

Showing the most recent 100 of 144 total refreshes for this CVE.

  1. 2026-09-18 23:42 UTCOSV refresh
  2. 2026-09-18 19:22 UTCEPSS rescore
  3. 2026-09-17 19:21 UTCEPSS rescore
  4. 2026-09-15 03:05 UTCEPSS rescore
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  11. 2026-09-01 03:31 UTCEPSS rescore
  12. 2026-08-31 03:33 UTCOSV refresh
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  24. 2026-08-14 11:45 UTCOSV refresh
  25. 2026-08-12 13:46 UTCEPSS rescore
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  1. 2026-08-11 13:36 UTCEPSS rescore
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  10. 2026-07-30 16:23 UTCEPSS rescore
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  12. 2026-07-29 23:07 UTCOSV refresh
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  17. 2026-07-23 01:23 UTCEG score recompute
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  19. 2026-07-22 14:04 UTCEPSS rescore
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  28. 2026-07-16 16:59 UTCEPSS rescore
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  36. 2026-07-12 09:08 UTCOSV refresh
  37. 2026-07-12 05:43 UTCEPSS rescore
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  50. 2026-06-30 23:19 UTCEPSS rescore
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  54. 2026-06-27 03:05 UTCEPSS rescore
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  56. 2026-06-25 13:47 UTCEPSS rescore
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  61. 2026-06-23 14:50 UTCOSV refresh
  62. 2026-06-22 14:23 UTCEPSS rescore
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  74. 2026-06-15 17:45 UTCEPSS rescore
  75. 2026-06-14 23:14 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2016-5362?
CVE-2016-5362 is a high vulnerability published on June 17, 2016. The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended DHCP-spoofing protection mechanism and consequently cause a denial of service or intercept network traffic via a crafted DHCP discovery message.
When was CVE-2016-5362 disclosed?
CVE-2016-5362 was first published in the National Vulnerability Database on June 17, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-5362 actively exploited?
CVE-2016-5362 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 11.6% of all scored CVEs.
What is the CVSS score of CVE-2016-5362?
CVE-2016-5362 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2016-5362?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-5362, 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.

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