CVE-2026-90869 (GCVE-0-2026-90869)
Vulnerability from cvelistv5 – Published: 2026-10-29 15:54 – Updated: 2026-10-29 15:54
VLAI
EPSS
VEX
Title
Pre-Authentication SSH Denial of Service via Malformed Public-Key Signature in Progress WS_FTP Server
Summary
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.
Severity
7.5 (High)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://progress.lightning.force.com/lightning/r/… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Progress Software | WS_FTP Server |
Affected:
0 , < 2024.0.7
(custom)
Affected: 0 , < 2025.0.4 (custom) |
guessed |
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"dateReserved": "2026-09-14T06:09:55.848Z",
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],
"id": "CVE-2026-90869",
"lastModified": "2026-10-29T16:24:53.840",
"metrics": {
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}
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Sightings
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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