{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-115339", "assignerOrgId": "f9fea0b6-671e-4eea-8fde-31911902ae05", "state": "PUBLISHED", "assignerShortName": "ProgressSoftware", "dateReserved": "2026-10-22T10:41:52.792Z", "datePublished": "2026-11-09T16:46:51.328Z", "dateUpdated": "2026-11-09T16:46:51.328Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f9fea0b6-671e-4eea-8fde-31911902ae05", "shortName": "ProgressSoftware", "dateUpdated": "2026-11-09T16:46:51.328Z"}, "title": "Unauthenticated XFT Memory Exhaustion in Progress WS_FTP Server", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-770", "description": "CWE-770: Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}], "impacts": [{"descriptions": [{"lang": "en", "value": "Excessive Allocation - unauthenticated requests can consume service memory."}]}], "affected": [{"vendor": "Progress Software", "product": "WS_FTP Server", "platforms": ["Windows"], "versions": [{"status": "affected", "version": "0", "lessThan": "2025.0.5", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Insufficient resource limits in Progress Software WS_FTP Server releases prior to 2025.0.5 on Windows could allow an unauthenticated remote attacker to cause denial of service.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Insufficient resource limits in Progress Software WS_FTP Server releases prior to 2025.0.5 on Windows could allow an unauthenticated remote attacker to cause denial of service."}]}], "references": [{"url": "https://community.progress.com/s/article/WS-FTP-Server-Service-Pack-November-2026", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}], "workarounds": [{"lang": "en", "value": "Reduce XFT service message-size and array-size limits to the minimum required for normal transfers. Contact Progress Software Technical Support for guidance on configuring these limits.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<div>Reduce XFT service message-size and array-size limits to the minimum required for normal transfers. Contact Progress Software Technical Support for guidance on configuring these limits.</div>"}]}], "credits": [{"lang": "en", "value": "Niv Levy (restricted)", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 0.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "platforms": ["Windows"], "product": "WS_FTP Server", "vendor": "Progress Software", "versions": [{"lessThan": "2025.0.5", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "security@progress.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Insufficient resource limits in Progress Software WS_FTP Server releases prior to 2025.0.5 on Windows could allow an unauthenticated remote attacker to cause denial of service."}], "id": "CVE-2026-115339", "lastModified": "2026-11-09T17:17:11.490", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security@progress.com", "type": "Secondary"}]}, "published": "2026-11-09T17:17:11.380", "references": [{"source": "security@progress.com", "url": "https://community.progress.com/s/article/WS-FTP-Server-Service-Pack-November-2026"}], "sourceIdentifier": "security@progress.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "security@progress.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": ["windows"], "status": "affected", "versions": {"scheme": "generic", "value": "[0,2025.0.5)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "WS_FTP Server", "source": "cna", "vendor": "Progress Software"}, "product": "ws_ftp_server", "vendor": "progress"}, {"configurations": [{"platform": ["windows"], "status": "affected", "versions": {"scheme": "generic", "value": "[0,2025.0.5)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "WS_FTP Server", "source": "cna", "vendor": "Progress Software"}, "product": "ws_ftp_server", "vendor": "progress_software"}], "created": "2026-11-09T18:30:13.372793+00:00", "updated": "2026-11-09T18:45:11.590667+00:00", "vendors": ["progress", "progress$PRODUCT$ws_ftp_server", "progress_software", "progress_software$PRODUCT$ws_ftp_server"]}