When was CVE-2021-42373 disclosed?

CVE-2021-42373 was first published in the National Vulnerability Database on November 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-2021-42373 actively exploited?

CVE-2021-42373 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 24.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-42373?

CVE-2021-42373 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2021-42373?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-42373, 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.

CVE-2021-42373

MEDIUMNVD 5.55.5—

5.5

A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is supplied but no page argument is given

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 24.3%
KEV: Not listed

References (10)

reefs@jfroghttps://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog
reefs@jfroghttps://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/
reefs@jfroghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/
reefs@jfroghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/
reefs@jfroghttps://security.netapp.com/advisory/ntap-20211223-0002/
af854a3a-2127-422b-91ae-364da2661108https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog
af854a3a-2127-422b-91ae-364da2661108https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20211223-0002/

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CVE-2021-42373

Published

Last Modified

References (10)

Weakness Classification(1)

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-42373?

Same CWE

CVE-2021-42373

📅 Published

🔄 Last Modified

🔗 References (10)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-42373?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (10)

Frequently asked(5)

Related CVEs(same CWE)