What is CVE-2026-115337?

CVE-2026-115337 is a medium-severity vulnerability in Progress Software Ws FTP Server, classified under Incorrect Authorization. CVSS score: 6.3/10. Published 2026-11-09.

How severe is CVE-2026-115337?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Auth bypass in Progress Software Ws FTP Server

CVE-2026-115337

Improper access control in Progress WS_FTP Server versions prior to 2025.0.5 could allow an authenticated user with certain folder-management permissions to bypass access restrictions and access or modify files belonging to other users.

Vulnerability class: Broken Access Control

Published 2026-11-09 · last modified 2026-11-09.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Progress Software Ws FTP Server

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

community.progress.com/s/article/WS-FTP-Server-Service-Pack-November-2026 (vendor-advisory)

Frequently asked questions

What is CVE-2026-115337?: CVE-2026-115337 is a medium-severity vulnerability in Progress Software Ws FTP Server, classified under Incorrect Authorization. CVSS score: 6.3/10. Published 2026-11-09.
How severe is CVE-2026-115337?: Medium severity. CVSS v3 base score is 6.3 out of 10.