FTP Quota Accounting Bypass in Progress WS_FTP Server
Summary
| CVE | CVE-2026-115336 |
|---|---|
| State | PUBLISHED |
| Assigner | ProgressSoftware |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-11-09 17:17:10 UTC |
| Updated | 2026-11-09 17:17:11 UTC |
| Description | Incorrect quota accounting in Progress Software WS_FTP Server releases prior to 2025.0.5 on Windows could allow an authenticated user with upload and delete permissions to exceed storage quotas, potentially causing denial of service. |
Risk And Classification
Primary CVSS: v3.1 6.5 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Problem Types: CWE-682 | CWE-682 CWE-682: Incorrect Calculation
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | CNA | CVSS | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Progress Software | WS FTP Server | affected 2025.0.0 2025.0.5 custom | Windows |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| community.progress.com/s/article/WS-FTP-Server-Service-Pack-November-2026 | [email protected] | community.progress.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Workarounds
CNA: There are no workarounds that address this vulnerability.
There are currently no legacy QID mappings associated with this CVE.