Description
A remote attacker who knows a valid account's enrolled SSH public key can terminate the shared SSH service in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows.
Published: 2026-10-29
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

Restrict network access to the SSH/SFTP service to trusted clients and disable SSH/SFTP access if it is not required. Contact Progress Software Technical Support for guidance on available mitigations.

Tracking

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Advisories

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History

Fri, 30 Oct 2026 19:30:00 +0100

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 29 Oct 2026 23:00:00 +0100

Type Values Removed Values Added
First Time appeared Progress
Progress ws Ftp Server
Progress Software
Progress Software ws Ftp Server
Vendors & Products Progress
Progress ws Ftp Server
Progress Software
Progress Software ws Ftp Server

Thu, 29 Oct 2026 17:00:00 +0100

Type Values Removed Values Added
Description A remote attacker who knows a valid account's enrolled SSH public key can terminate the shared SSH service in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows.
Title Pre-Authentication SSH Denial of Service via Malformed Public-Key Signature in Progress WS_FTP Server
Weaknesses CWE-125
CWE-20
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Progress Ws Ftp Server
Progress Software Ws Ftp Server
cve-icon MITRE

Status: PUBLISHED

Assigner: ProgressSoftware

Published:

Updated: 2026-10-30T17:14:35.864Z

Reserved: 2026-09-14T06:09:55.848Z

Link: CVE-2026-90869

cve-icon Vulnrichment

Updated: 2026-10-30T17:14:31.678Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-29T16:20:05.080

Modified: 2026-10-30T18:18:17.587

Link: CVE-2026-90869

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-29T22:45:14Z

Weaknesses