CVE-2023-5408

HIGHNVD 7.28.2▲
EchelonGraph scoreMEDIUM confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2023-11-02. NVD baseline CVSS 7.2; sources differ by 1.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.2Exploit: NoneExposed: 0

A fix is available — apply it.

A privilege escalation flaw was found in the node restriction admission plugin of the kubernetes api server of OpenShift. A remote attacker who modifies the node role label could steer workloads from the control plane and etcd nodes onto different worker nodes and gain broader access to the cluster.

CVSS v3
7.2
EG Score
8.2(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
62.5%
KEV
Not listed

Published

November 2, 2023

Last Modified

June 17, 2026

References (14)

Vendor Advisories for CVE-2023-5408(4)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatopenshift4/ose-cluster-kube-apiserver-operator:v4.11.0-202311211130.p0.g7021090.assembly.stream2023-11-29redhat
redhatopenshift4/ose-cluster-kube-apiserver-operator:v4.12.0-202311021630.p0.gfe5e2a1.assembly.stream2023-11-16redhat
redhatopenshift4/ose-cluster-kube-apiserver-operator:v4.14.0-202310201027.p0.g8b38d12.assembly.stream2023-10-31redhat
redhatopenshift4/ose-cluster-kube-apiserver-operator:v4.13.0-202310210425.p0.gd525f5d.assembly.stream2023-10-30redhat

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(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× in last 7d / 46× 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 02:30 UTCEG score recompute
  2. 2026-07-22 23:16 UTCEG score recompute
  3. 2026-07-22 14:07 UTCEPSS rescore
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  70. 2026-05-24 14:38 UTCEG score recompute
  71. 2026-05-24 14:38 UTCVendor advisory
  72. 2026-05-24 14:38 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-5408?
CVE-2023-5408 is a high vulnerability published on November 2, 2023. A privilege escalation flaw was found in the node restriction admission plugin of the kubernetes api server of OpenShift. A remote attacker who modifies the node role label could steer workloads from the control plane and etcd nodes onto different worker nodes and gain broader access to the cluster.
When was CVE-2023-5408 disclosed?
CVE-2023-5408 was first published in the National Vulnerability Database on November 2, 2023, 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-2023-5408 actively exploited?
CVE-2023-5408 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 62.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-5408?
CVE-2023-5408 has a CVSS v3 base score of 7.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.2.
How do I remediate CVE-2023-5408?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-5408, 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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