{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-8670", "assignerOrgId": "455daabc-a392-441d-aa46-37d35189897c", "state": "PUBLISHED", "assignerShortName": "NCSC.ch", "dateReserved": "2026-05-15T11:49:57.345Z", "datePublished": "2026-05-22T13:12:52.693Z", "dateUpdated": "2026-05-22T15:05:13.802Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "455daabc-a392-441d-aa46-37d35189897c", "shortName": "NCSC.ch", "dateUpdated": "2026-05-22T13:12:52.693Z" }, "title": "Insecure session handling on metrics web server", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-613", "description": "CWE-613 Insufficient session expiration", "type": "CWE" } ] } ], "impacts": [ { "capecId": "CAPEC-60", "descriptions": [ { "lang": "en", "value": "CAPEC-60 Reusing Session IDs (aka Session Replay)" } ] } ], "affected": [ { "vendor": "syslink software AG", "product": "Avantra", "platforms": [ "Linux", "Windows" ], "versions": [ { "status": "affected", "version": "0", "lessThan": "25.3.1", "versionType": "semver" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "Insufficient session expiration vulnerability in syslink software AG Avantra on Linux, Windows allows Reusing Session IDs (aka Session Replay).\n\nThis issue affects Avantra: before 25.3.1.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "Insufficient session expiration vulnerability in syslink software AG Avantra on Linux, Windows allows Reusing Session IDs (aka Session Replay).

This issue affects Avantra: before 25.3.1.

" } ] } ], "references": [ { "url": "https://support.avantra.com/hc/en-us/articles/5533929912351", "tags": [ "vendor-advisory" ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "CRITICAL", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H" } } ], "credits": [ { "lang": "en", "value": "Vicxer Inc.", "type": "finder" } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 1.0.1" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-05-22T15:05:05.008406Z", "id": "CVE-2026-8670", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-22T15:05:13.802Z" } } ] } }