cvedb.io
CVE-2021-40524
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2021-09-05T19:15:15.080 · Last modified 2026-06-17T04:07:05.163

Summary

In Pure-FTPd before 1.0.50, an incorrect max_filesize quota mechanism in the server allows attackers to upload files of unbounded size, which may lead to denial of service or a server hang. This occurs because a certain greater-than-zero test does not anticipate an initial -1 value. (Versions 1.0.23 through 1.0.49 are affected.)

Affected products

pureftpd — pure-ftpd

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.