CVE-2021-38297

CRITICALNVD 9.89.8—Trending — 5 sources updated this week

9.8

Go before 1.16.9 and 1.17.x before 1.17.2 has a Buffer Overflow via large arguments in a function invocation from a WASM module, when GOARCH=wasm GOOS=js is used.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 93.4%
KEV: Not listed

Published

October 18, 2021

Last Modified

November 21, 2024

References (14)

cve@mitrehttps://groups.google.com/forum/#%21forum/golang-announce
cve@mitrehttps://groups.google.com/g/golang-announce/c/AEBu9j7yj5A
cve@mitrehttps://lists.debian.org/debian-lts-announce/2023/04/msg00021.html
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OFS3M3OFB24SWPTIAPARKGPUMQVUY6Z/
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ON7BQRRJZBOR5TJHURBAB3WLF4YXFC6Z/
cve@mitrehttps://security.gentoo.org/glsa/202208-02
cve@mitrehttps://security.netapp.com/advisory/ntap-20211118-0006/
af854a3a-2127-422b-91ae-364da2661108https://groups.google.com/forum/#%21forum/golang-announce
af854a3a-2127-422b-91ae-364da2661108https://groups.google.com/g/golang-announce/c/AEBu9j7yj5A
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OFS3M3OFB24SWPTIAPARKGPUMQVUY6Z/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ON7BQRRJZBOR5TJHURBAB3WLF4YXFC6Z/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202208-02
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20211118-0006/

Patch Availability(3)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	go-toolset:rhel8-8060020220221035359.76a129d7	2022-05-10	redhat
redhat	openshift-serverless-clients-0:0.26.0-2.el8	2022-02-03	redhat
redhat	openshift-serverless-1-tech-preview/eventing-kafka-broker-webhook-rhel8:0.26.0-2	2022-02-03	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.

Affected Packages

(1 across 1 ecosystem)

Go(1)

Package	Vulnerable range	Fixed in	Dependents
toolchain	—	1.17.2	—

Weakness Classification(1)

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

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

All Vendor Advisories

(4)

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 / 13× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 08:59 UTCEG score recompute
2026-05-26 08:59 UTCVendor advisory
2026-05-26 08:59 UTCGHSA enrichment
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 02:16 UTCOSV refresh

Frequently asked(5)

What is CVE-2021-38297?

CVE-2021-38297 is a critical vulnerability published on October 18, 2021. Go before 1.16.9 and 1.17.x before 1.17.2 has a Buffer Overflow via large arguments in a function invocation from a WASM module, when GOARCH=wasm GOOS=js is used.

When was CVE-2021-38297 disclosed?

CVE-2021-38297 was first published in the National Vulnerability Database on October 18, 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-2021-38297 actively exploited?

CVE-2021-38297 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 93.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-38297?

CVE-2021-38297 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-38297?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-38297, 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-2021-38297

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CVE-2021-38297

Published

Last Modified

References (14)

Patch Availability(3)

Affected Packages

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-38297?

Same vendor

Same CWE

CVE-2021-38297

📅 Published

🔄 Last Modified

🔗 References (14)

Patch Availability(3)

Affected Packages

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-38297?

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Frequently asked(5)

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