CVE-2021-27201

HIGHNVD 8.88.8—

8.8

Endian Firewall Community (aka EFW) 3.3.2 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in a backup comment.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 81.8%
KEV: Not listed

Published

February 15, 2021

Last Modified

November 21, 2024

References (6)

cve@mitrehttps://github.com/MucahitSaratar/endian_firewall_authenticated_rce
cve@mitrehttps://sourceforge.net/projects/efw/files/Development/EFW-3.3.2/
cve@mitrehttps://www.endian.com/company/news/endian-community-releases-new-version-332-148/
af854a3a-2127-422b-91ae-364da2661108https://github.com/MucahitSaratar/endian_firewall_authenticated_rce
af854a3a-2127-422b-91ae-364da2661108https://sourceforge.net/projects/efw/files/Development/EFW-3.3.2/
af854a3a-2127-422b-91ae-364da2661108https://www.endian.com/company/news/endian-community-releases-new-version-332-148/

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× 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.

2026-06-02 20:11 UTCepss_batch
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2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
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2026-05-31 22:29 UTCepss_batch
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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 20:48 UTCEG score recompute
2026-05-26 20:48 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2021-27201?

CVE-2021-27201 is a high vulnerability published on February 15, 2021. Endian Firewall Community (aka EFW) 3.3.2 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in a backup comment.

When was CVE-2021-27201 disclosed?

CVE-2021-27201 was first published in the National Vulnerability Database on February 15, 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-2021-27201 actively exploited?

CVE-2021-27201 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 81.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-27201?

CVE-2021-27201 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2021-27201?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-27201, 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-2021-27201

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-27201?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)