{"id":"CVE-2026-90869","aliases":[],"cve":{"records":[{"id":"CVE-2026-90869","source":"ProgressSoftware","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-14T06:09:55.848Z","published":"2026-10-29T15:54:48.769Z","modified":"2026-10-30T17:14:35.864Z"}],"publishers":[{"name":"ProgressSoftware","role":"CNA","organizationId":"f9fea0b6-671e-4eea-8fde-31911902ae05","modified":"2026-10-29T15:54:48.769Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-30T17:14:35.864Z"}],"references":[{"url":"https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view","tags":["vendor-advisory"],"source":"ProgressSoftware"}],"weaknesses":[{"id":"CWE-125","description":"CWE-125: Out-of-bounds Read","source":"ProgressSoftware"},{"id":"CWE-20","description":"CWE-20: Improper Input Validation","source":"ProgressSoftware"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-30T17:14:25.359940Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Pre-Authentication SSH Denial of Service via Malformed Public-Key Signature in Progress WS_FTP Server","titleSource":"ProgressSoftware","descriptionSource":"ProgressSoftware","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Windows.","score":7.5,"severity":"high","published":"2026-10-29T15:54:48.769Z","modified":"2026-10-30T17:14:35.864Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Progress Software","name":"WS_FTP Server","platforms":["Windows"],"versions":[{"version":"0","status":"affected","lessThan":"2024.0.7","versionType":"custom"},{"version":"0","status":"affected","lessThan":"2025.0.4","versionType":"custom"}],"defaultStatus":"unaffected","cpes":[],"source":"ProgressSoftware","url":"https://www.cve.org/CVERecord?id=CVE-2026-90869"}],"remediation":[{"text":"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.","source":"ProgressSoftware","url":"https://www.cve.org/CVERecord?id=CVE-2026-90869"}],"references":["https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view"],"sources":[{"name":"CVE","id":"CVE-2026-90869","modified":"2026-10-30T17:14:35.864Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-90869"}],"assessments":[{"source":"ProgressSoftware","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5}],"sourceAffected":[],"observedAt":"2026-10-30T18:55:10.102Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T08:40:31.094Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":{"text":"Progress WS_FTP Server on Windows, versions prior to 2024.0.7 and 2025.0.4, is vulnerable to a denial of service via a malformed public-key signature. A remote attacker with a valid account's SSH public key can terminate the shared SSH service.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T10:02:37.462Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-90869"}]}}