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Vulnerability record · CVE-2020-9273 · published 20 February 2020

CVE-2020-9273: Proftpd use after free vulnerability

PProftpd · Proftpd

In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.

8.8 CVSS 3.1 High EPSS 12% · top 4.0% CWE-416 · Use after free
8.8CVSS 3.1 base score, v2 9.0
12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
24References
17 Jun 2026Last modified by NVD

Description

In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00002.html Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/25/1 Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/06/2 Mailing ListThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-679335.pdf Third Party Advisory
https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES Release NotesThird Party Advisory
https://github.com/proftpd/proftpd/issues/903 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/02/msg00022.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00002.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VCUPRYSJR7XOM3HQ6H5M4OG
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHO3S5WPRRP7VGKIAHLYQVE
https://security.gentoo.org/glsa/202003-35 Third Party Advisory
https://www.debian.org/security/2020/dsa-4635 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00002.html Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/25/1 Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/06/2 Mailing ListThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-679335.pdf Third Party Advisory
https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES Release NotesThird Party Advisory
https://github.com/proftpd/proftpd/issues/903 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/02/msg00022.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00002.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VCUPRYSJR7XOM3HQ6H5M4OG
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHO3S5WPRRP7VGKIAHLYQVE
https://security.gentoo.org/glsa/202003-35 Third Party Advisory
https://www.debian.org/security/2020/dsa-4635 Third Party Advisory

Track CVE-2020-9273 inside VULONE

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Source: NIST National Vulnerability Database (record CVE-2020-9273), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.