CVE-2021-47208

MEDIUMNVD 4.34.3—Elevated

4.3

The Mojolicious module before 9.11 for Perl has a bug in format detection that can potentially be exploited for denial of service.

CVSS v3: 4.3
EG Score: 4.3(medium)
EPSS: 13.8%
KEV: Not listed

Published

April 8, 2024

Last Modified

May 5, 2025

References (4)

cve@mitrehttps://github.com/mojolicious/mojo/commit/a0c4576ffb11c235088550de9ba7ac4196e1953c
cve@mitrehttps://github.com/mojolicious/mojo/issues/1736
af854a3a-2127-422b-91ae-364da2661108https://github.com/mojolicious/mojo/commit/a0c4576ffb11c235088550de9ba7ac4196e1953c
af854a3a-2127-422b-91ae-364da2661108https://github.com/mojolicious/mojo/issues/1736

Weakness Classification(1)

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

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 10× in last 7d / 20× 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.

2026-06-04 13:11 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 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 13:43 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 05:05 UTCEG score recompute
2026-05-24 05:05 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-47208?

CVE-2021-47208 is a medium vulnerability published on April 8, 2024. The Mojolicious module before 9.11 for Perl has a bug in format detection that can potentially be exploited for denial of service.

When was CVE-2021-47208 disclosed?

CVE-2021-47208 was first published in the National Vulnerability Database on April 8, 2024, with the most recent update on May 5, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-47208 actively exploited?

CVE-2021-47208 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-47208?

CVE-2021-47208 has a CVSS v3 base score of 4.3 (NVD).

How do I remediate CVE-2021-47208?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-47208, 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-2021-47208

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-47208?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (4)

Frequently asked(5)

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