{"schemaVersion":3,"id":"CVE-2021-27610","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"SAP NetWeaver ABAP Server and ABAP Platform, versions - 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 804, does not create information about internal and external RFC user in consistent and distinguished format, which could lead to improper authentication and may be exploited by malicious users to obtain illegitimate access to the system.","dates":{"published":"2021-06-16T14:45:57.000Z","modified":"2024-08-03T21:26:09.712Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":9,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":9,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":7.5,"severity":"high","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.0132,"percentile":0.70624,"severity":"low","asOf":"2026-10-22T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-22T00:00:00.000Z","baselineScore":0.0132},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-22T00:00:00.000Z","score":0.0132,"percentile":0.70624}],"last30":[{"date":"2026-09-22T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.0132,"percentile":null},{"date":"2026-10-22T00:00:00.000Z","score":0.0132,"percentile":0.70624}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-287","name":"Improper Authentication","description":"When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/287.html"}],"affected":[{"vendor":"sap_se","product":"sap netweaver as abap and abap platform","name":"SAP NetWeaver AS ABAP and ABAP Platform","label":"sap netweaver as abap and abap platform","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 700","noFixRecorded":false,"fixedIn":null},{"text":"< 701","noFixRecorded":false,"fixedIn":null},{"text":"< 702","noFixRecorded":false,"fixedIn":null},{"text":"< 731","noFixRecorded":false,"fixedIn":null},{"text":"< 740","noFixRecorded":false,"fixedIn":null},{"text":"< 750","noFixRecorded":false,"fixedIn":null},{"text":"< 751","noFixRecorded":false,"fixedIn":null},{"text":"< 752","noFixRecorded":false,"fixedIn":null},{"text":"< 753","noFixRecorded":false,"fixedIn":null},{"text":"< 754","noFixRecorded":false,"fixedIn":null},{"text":"< 755","noFixRecorded":false,"fixedIn":null},{"text":"< 804","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 700 | < 701 | < 702 | < 731 | < 740 | < 750 | < 751 | < 752 | < 753 | < 754 | < 755 | < 804","eol":null,"hubHref":"/vendor/sap_se/sap_netweaver_as_abap_and_abap_platform"},{"vendor":"sap","product":"netweaver_abap","name":"netweaver abap","label":"netweaver_abap","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"700","noFixRecorded":false,"fixedIn":null},{"text":"701","noFixRecorded":false,"fixedIn":null},{"text":"702","noFixRecorded":false,"fixedIn":null},{"text":"731","noFixRecorded":false,"fixedIn":null},{"text":"740","noFixRecorded":false,"fixedIn":null},{"text":"750","noFixRecorded":false,"fixedIn":null},{"text":"751","noFixRecorded":false,"fixedIn":null},{"text":"752","noFixRecorded":false,"fixedIn":null},{"text":"7.53","noFixRecorded":false,"fixedIn":null},{"text":"754","noFixRecorded":false,"fixedIn":null},{"text":"755","noFixRecorded":false,"fixedIn":null},{"text":"8.04","noFixRecorded":false,"fixedIn":null}],"versionsText":"700 | 701 | 702 | 731 | 740 | 750 | 751 | 752 | 7.53 | 754 | 755 | 8.04","eol":null,"hubHref":"/vendor/sap/netweaver_abap"},{"vendor":"sap","product":"netweaver_application_server_abap","name":"netweaver application server abap","label":"netweaver_application_server_abap","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"700","noFixRecorded":false,"fixedIn":null},{"text":"701","noFixRecorded":false,"fixedIn":null},{"text":"702","noFixRecorded":false,"fixedIn":null},{"text":"731","noFixRecorded":false,"fixedIn":null},{"text":"740","noFixRecorded":false,"fixedIn":null},{"text":"750","noFixRecorded":false,"fixedIn":null},{"text":"751","noFixRecorded":false,"fixedIn":null},{"text":"752","noFixRecorded":false,"fixedIn":null},{"text":"753","noFixRecorded":false,"fixedIn":null},{"text":"754","noFixRecorded":false,"fixedIn":null},{"text":"755","noFixRecorded":false,"fixedIn":null},{"text":"8.04","noFixRecorded":false,"fixedIn":null}],"versionsText":"700 | 701 | 702 | 731 | 740 | 750 | 751 | 752 | 753 | 754 | 755 | 8.04","eol":null,"hubHref":"/vendor/sap/netweaver_application_server_abap"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999","label":"wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999","hostname":"wiki.scn.sap.com","tags":["X Refsource MISC","Vendor Advisory"]},{"url":"https://launchpad.support.sap.com/#/notes/3007182","label":"launchpad.support.sap.com","hostname":"launchpad.support.sap.com","tags":["X Refsource MISC","Permissions Required","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-06-16T14:45:57.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-03T21:26:09.712Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T14:13:19.624Z","stale":false,"partial":false}}