CVE-2021-40524: pureftpd pure-ftpd

csirt@kutim:~/threat-intel/cve/CVE-2021-40524

CVSS 7.5 · High EPSS 4,3%

Kerentanan Unrestricted Upload of File with Dangerous Type pada pureftpd pure-ftpd. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

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.)

Rincian

Terbit di NVD: 5 September 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-434: Unrestricted Upload of File with Dangerous Type
EPSS (30 hari): 4,3% peluang dieksploitasi; lebih tinggi dari 90,9% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
pureftpd	pure-ftpd	Versi 1.0.23 hingga sebelum 1.0.50

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/jedisct1/pure-ftpd/commit/37ad222868e52271905b94afea4fc780d83294b4 patch · advisory pihak ketiga
https://github.com/jedisct1/pure-ftpd/compare/1.0.49...1.0.50 patch · advisory pihak ketiga
https://github.com/jedisct1/pure-ftpd/pull/158 exploit · advisory pihak ketiga
https://lists.debian.org/debian-lts-announce/2025/11/msg00003.html

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.