CVE-2020-28852

HIGHNVD 7.57.5—Trending — 5 sources updated this week

7.5

In x/text in Go before v0.3.5, a "slice bounds out of range" panic occurs in language.ParseAcceptLanguage while processing a BCP 47 tag. (x/text/language is supposed to be able to parse an HTTP Accept-Language header.)

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 28.6%
KEV: Not listed

Published

January 2, 2021

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://github.com/golang/go/issues/42536
cve@mitrehttps://security.netapp.com/advisory/ntap-20210212-0004/
af854a3a-2127-422b-91ae-364da2661108https://github.com/golang/go/issues/42536
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210212-0004/

Vendor Advisories for CVE-2020-28852(2)

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

Patch Availability(6)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	golang-golang-x-text-dev (0.3.7-1ubuntu0.20.04.1) @ jammy	2026-05-26	ubuntu
redhat	podman-2:4.2.0-3.el9	2022-11-15	redhat
redhat	git-lfs-0:2.13.3-3.el8_6	2022-10-25	redhat
redhat	servicemesh-0:2.0.9-3.el8	2022-04-07	redhat
redhat	openshift4-wincw/windows-machine-config-rhel8-operator:5.0.0-5	2022-03-28	redhat
redhat	openshift4/ose-thanos-rhel8:v4.8.0-202106291913.p0.git.c358e96.assembly.stream	2021-07-27	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-129Improper Validation of Array Index

Additional Vendor Advisories

(5)

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 18× in last 7d / 18× 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.

2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
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
2026-05-26 22:41 UTCEG score recompute
2026-05-26 22:41 UTCVendor advisory
2026-05-26 22:41 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 11:15 UTCOSV refresh
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2020-28852?

CVE-2020-28852 is a high vulnerability published on January 2, 2021. In x/text in Go before v0.3.5, a "slice bounds out of range" panic occurs in language.ParseAcceptLanguage while processing a BCP 47 tag. (x/text/language is supposed to be able to parse an HTTP Accept-Language header.)

When was CVE-2020-28852 disclosed?

CVE-2020-28852 was first published in the National Vulnerability Database on January 2, 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-2020-28852 actively exploited?

CVE-2020-28852 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 28.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-28852?

CVE-2020-28852 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2020-28852?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-28852, 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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CVE-2020-28852

Published

Last Modified

References (4)

Vendor Advisories for CVE-2020-28852(2)

Patch Availability(6)

Weakness Classification(1)

Additional Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-28852?

Same vendor

Same CWE

CVE-2020-28852

📅 Published

🔄 Last Modified

🔗 References (4)

📣 Vendor Advisories for CVE-2020-28852(2)

Patch Availability(6)

Weakness Classification(1)

Additional Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-28852?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

Same CWE

Published

Last Modified

References (4)

Vendor Advisories for CVE-2020-28852(2)

Frequently asked(5)

Related CVEs(same vendor + same CWE)