What is CVE-2026-115341?

CVE-2026-115341 is a high-severity vulnerability in Progress Software Ws FTP Server, classified under Path Traversal. CVSS score: 7.7/10. Published 2026-11-09.

How severe is CVE-2026-115341?

High severity. CVSS v3 base score is 7.7 out of 10.

Auth bypass in Progress Software Ws FTP Server

CVE-2026-115341

Improper access restrictions in the Thin Client Web Transfer component of Progress Software WS_FTP Server versions prior to 2025.0.5 on Windows could allow an authenticated FTP user to access files outside their intended scope.

Vulnerability class: Path Traversal (Directory Traversal)

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

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

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)

References

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

Frequently asked questions

What is CVE-2026-115341?: CVE-2026-115341 is a high-severity vulnerability in Progress Software Ws FTP Server, classified under Path Traversal. CVSS score: 7.7/10. Published 2026-11-09.
How severe is CVE-2026-115341?: High severity. CVSS v3 base score is 7.7 out of 10.