CVE-2023-32559

HIGHNVD 7.59.8▲
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: HIGH) published 2023-08-24. NVD baseline CVSS 7.5; sources differ by 2.3.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

A privilege escalation vulnerability exists in the experimental policy mechanism in all active release lines: 16.x, 18.x and, 20.x. The use of the deprecated API process.binding() can bypass the policy mechanism by requiring internal modules and eventually take advantage of process.binding('spawn_sync') run arbitrary code, outside of the limits defined in a policy.json file. Please note that at the time this CVE was issued, the policy is an experimental feature of Node.js.

CVSS v3
7.5
EG Score
9.8(medium)
EG Risk
—
EPSS
71.3%
KEV
Not listed

Published

August 24, 2023

Last Modified

November 4, 2025

References (5)

Vendor Advisories for CVE-2023-32559(6)

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

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntunodejs-doc (18.13.0+dfsg1-1ubuntu2.3) @ mantic2026-05-24ubuntu
redhatnodejs-1:16.20.2-1.el9_02023-10-09redhat
redhatnodejs-1:16.20.2-1.el9_22023-10-09redhat
redhatnodejs:18-8080020230825111344.63b345852023-09-26redhat
redhatnodejs:16-8060020230906023909.ad008a3a2023-09-26redhat
redhatnodejs:16-8080020230906092006.63b345852023-09-26redhat
redhatnodejs:18-9020020230825081254.rhel92023-09-26redhat

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

(2)

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 12× in last 7d / 52× 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 113 total refreshes for this CVE.

  1. 2026-07-22 23:10 UTCEG score recompute
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Frequently asked(5)

What is CVE-2023-32559?
CVE-2023-32559 is a high vulnerability published on August 24, 2023. A privilege escalation vulnerability exists in the experimental policy mechanism in all active release lines: 16.x, 18.x and, 20.x. The use of the deprecated API process.binding() can bypass the policy mechanism by requiring internal modules and eventually take advantage of…
When was CVE-2023-32559 disclosed?
CVE-2023-32559 was first published in the National Vulnerability Database on August 24, 2023, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-32559 actively exploited?
CVE-2023-32559 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 71.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-32559?
CVE-2023-32559 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.
How do I remediate CVE-2023-32559?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-32559, 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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