CVE-2026-53994: proftpd before 1.3.10 (exclusive); +1 more affected products

CVE-2026-53994. CVSS 3.1 base score 6.5 (MEDIUM, NVD). EPSS 0.00424 (percentile 0.35663), scored 24-Oct-2026.

Affected technology

proftpd · before 1.3.10 (exclusive)
proftpd

ProFTPD · 0 to before 1.3.10
ProFTPD Project

Component: Not specified by the source
Function: accepts

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

An authenticated user can crash the per-connection ProFTPD session child on demand with a single malformed SFTP packet (packet_len=0 followed by a body greater than approximately 544 bytes), producing reliable authenticated remote denial of service. Vendor/CNA’s CVSS 4.0 assessment (base score 7.7/10) rates confidentiality, integrity and availability impact as high.

Published 25-Oct-2026 01:30 UTC

CWE: CWE-122
CCR priority: 26.1 /100 (P4)
CVSS 3.1: 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · NVD
EPSS: 0.00424 · percentile 0.35663 · 2026-10-24
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-25 01:28:19.133527+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-53994.html