Quota Accounting Flaw in Progress Software WS_FTP Server
CVE-2026-115336

6.5MEDIUM

Key Information:

Vendor

Progress Software
Status
Ws Ftp Server
Vendor
CVE Published:
9 November 2026

What is CVE-2026-115336?

Progress Software's WS_FTP Server prior to version 2025.0.5 on Windows contains a flaw in quota accounting. This vulnerability allows authenticated users with upload and delete permissions to exceed defined storage quotas, potentially leading to denial of service. Organizations should ensure they are using the latest version to mitigate risks associated with this vulnerability.

Affected Version(s)

WS_FTP Server Windows 2025.0.0 < 2025.0.5

References

https://community.progress.com/s/article/WS-FTP-Server-Se...
vendor-advisory

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.