CVE-2026-90870

{"id": "CVE-2026-90870", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-90870", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-30T17:14:52.709323Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@progress.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security@progress.com", "affectedData": [{"vendor": "Progress Software", "product": "WS_FTP Server", "versions": [{"status": "affected", "version": "0", "lessThan": "2024.0.7", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "2025.0.4", "versionType": "custom"}], "platforms": ["Windows"], "defaultStatus": "unaffected"}]}], "published": "2026-10-29T16:20:05.190", "references": [{"url": "https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view", "source": "security@progress.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "security@progress.com", "description": [{"lang": "en", "value": "CWE-400"}, {"lang": "en", "value": "CWE-772"}]}], "descriptions": [{"lang": "en", "value": "A missing release of backend receiver sessions in the Ad Hoc Transfer component of Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could lead to server resource exhaustion and service degradation."}], "lastModified": "2026-10-30T18:18:17.703", "sourceIdentifier": "security@progress.com"}