CVE-2021-43464

HIGHNVD 8.88.8—Trending — 3 sources updated this week

8.8

A Remiote Code Execution (RCE) vulnerability exiss in Subrion CMS 4.2.1 via modified code in a background field; when the information is modified, the data in it will be executed through eval().

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 74.0%
KEV: Not listed

Published

April 4, 2022

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://github.com/intelliants/subrion/issues/888
af854a3a-2127-422b-91ae-364da2661108https://github.com/intelliants/subrion/issues/888

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
composer	intelliants/subrion	—	ghsa

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)

Packagist(1)

Package	Vulnerable range	Fixed in	Dependents
intelliants/subrion	v4.0.0 ... v4.2.1 (14 versions)	—	—

Data Freshness Timeline

(refreshed 16× in last 7d / 16× 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.

2026-05-31 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 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 00:33 UTCEG score recompute
2026-05-26 00:33 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-43464?

CVE-2021-43464 is a high vulnerability published on April 4, 2022. A Remiote Code Execution (RCE) vulnerability exiss in Subrion CMS 4.2.1 via modified code in a background field; when the information is modified, the data in it will be executed through eval().

When was CVE-2021-43464 disclosed?

CVE-2021-43464 was first published in the National Vulnerability Database on April 4, 2022, 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-2021-43464 actively exploited?

CVE-2021-43464 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 74.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-43464?

CVE-2021-43464 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2021-43464?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-43464, 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-2021-43464

📅 Published

🔄 Last Modified

🔗 References (2)

Patch Availability(1)

Affected Packages

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-43464?

🔗 Related CVEs(same product)

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Published

Last Modified

References (2)

Frequently asked(5)

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