[UPDATE] [medium] Node.js: Multiple vulnerabilities

mediumCVE-2025-23165 CVE-2025-23166 CVE-2025-23167

A local attacker can exploit multiple vulnerabilities in Node.js to conduct a denial of service attack or bypass security measures.

CSIRTS triage

vendor: Node.js product: Node.js Denial of service Authentication bypass

What: Multiple vulnerabilities in Node.js enable denial of service and security measure bypass.
Who is affected: Local users and network actors depending on the vulnerability scope in Node.js deployments are affected.
Urgency: Medium severity; exploitation details depend on specific vulnerability type.
Action: Update Node.js to a patched version addressing CVE-2025-23165, CVE-2025-23166, and CVE-2025-23167.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-08-17
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-1055

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2025-231650.55% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 44% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-231660.81% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 55% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-231670.51% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 42% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-23165	coverage & exploitation status	NVD · CVE.org
CVE-2025-23166	coverage & exploitation status	NVD · CVE.org
CVE-2025-23167	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Node.js

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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