CVE-2021-22940

HIGHNVD 7.57.5—

7.5

Node.js before 16.6.1, 14.17.5, and 12.22.5 is vulnerable to a use after free attack where an attacker might be able to exploit the memory corruption, to change process behavior.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 60.1%
KEV: Not listed

Published

August 16, 2021

Last Modified

November 21, 2024

References (18)

support@hackeronehttps://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
support@hackeronehttps://hackerone.com/reports/1238162
support@hackeronehttps://lists.debian.org/debian-lts-announce/2022/10/msg00006.html
support@hackeronehttps://nodejs.org/en/blog/vulnerability/aug-2021-security-releases/
support@hackeronehttps://security.gentoo.org/glsa/202401-02
support@hackeronehttps://security.netapp.com/advisory/ntap-20210923-0001/
support@hackeronehttps://www.oracle.com/security-alerts/cpujan2022.html
support@hackeronehttps://www.oracle.com/security-alerts/cpujul2022.html
support@hackeronehttps://www.oracle.com/security-alerts/cpuoct2021.html
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/1238162
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/10/msg00006.html
af854a3a-2127-422b-91ae-364da2661108https://nodejs.org/en/blog/vulnerability/aug-2021-security-releases/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202401-02
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210923-0001/

Patch Availability(6)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	nodejs:14-8040020210817165654.522a0ee4	2021-09-27	redhat
redhat	nodejs:12-8010020210817113128.c27ad7f8	2021-09-22	redhat
redhat	nodejs:12-8020020210817125332.4cda2c84	2021-09-22	redhat
redhat	nodejs:12-8040020210817133458.522a0ee4	2021-09-21	redhat
redhat	rh-nodejs12-nodejs-nodemon-0:2.0.3-5.el7	2021-08-26	redhat
redhat	rh-nodejs14-nodejs-0:14.17.5-1.el7	2021-08-26	redhat

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.

CWE-416Use After Free

All Vendor Advisories

(7)

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 13× in last 7d / 20× 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.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-22940?

CVE-2021-22940 is a high vulnerability published on August 16, 2021. Node.js before 16.6.1, 14.17.5, and 12.22.5 is vulnerable to a use after free attack where an attacker might be able to exploit the memory corruption, to change process behavior.

When was CVE-2021-22940 disclosed?

CVE-2021-22940 was first published in the National Vulnerability Database on August 16, 2021, 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-2021-22940 actively exploited?

CVE-2021-22940 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 60.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-22940?

CVE-2021-22940 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-22940?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-22940, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-22940

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Is Your Infrastructure Affected by CVE-2021-22940?

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CVE-2021-22940

Published

Last Modified

References (18)

Patch Availability(6)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-22940?

Same vendor

Same CWE

CVE-2021-22940

📅 Published

🔄 Last Modified

🔗 References (18)

Patch Availability(6)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-22940?

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References (18)

Frequently asked(5)

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