{"schemaVersion":3,"id":"CVE-2023-26455","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"RMI was not requiring authentication when calling ChronosRMIService:setEventOrganizer. Attackers with local or adjacent network access could abuse the RMI service to modify calendar items using RMI. RMI access is restricted to localhost by default. The interface has been updated to require authenticated requests. No publicly available exploits are known.","dates":{"published":"2023-11-02T13:01:20.424Z","modified":"2024-08-02T11:53:52.767Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":5.6,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00186,"percentile":0.07786,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00186},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00186,"percentile":0.07786}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00186,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00186,"percentile":0.07786}]},"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":"open-xchange","product":"open-xchange_appsuite","name":"open-xchange appsuite","label":"open-xchange_appsuite","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 7.10.6","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6069","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6073","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6080","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6085","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6093","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6102","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6112","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6121","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6133","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6138","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6141","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6146","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6147","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6148","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6150","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6156","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6161","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6166","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6173","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6176","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6178","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6189","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6194","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6199","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6204","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6205","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6209","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6210","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6214","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6215","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6216","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6218","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6219","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6220","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6227","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6230","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6233","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6235","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6236","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6239","noFixRecorded":false,"fixedIn":null},{"text":"7.10.6:patch_release_6241","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.10.6 | 7.10.6 | 7.10.6:patch_release_6069 | 7.10.6:patch_release_6073 | 7.10.6:patch_release_6080 | 7.10.6:patch_release_6085 | 7.10.6:patch_release_6093 | 7.10.6:patch_release_6102 | 7.10.6:patch_release_6112 | 7.10.6:patch_release_6121 | 7.10.6:patch_release_6133 | 7.10.6:patch_release_6138 | 7.10.6:patch_release_6141 | 7.10.6:patch_release_6146 | 7.10.6:patch_release_6147 | 7.10.6:patch_release_6148 | 7.10.6:patch_release_6150 | 7.10.6:patch_release_6156 | 7.10.6:patch_release_6161 | 7.10.6:patch_release_6166 | 7.10.6:patch_release_6173 | 7.10.6:patch_release_6176 | 7.10.6:patch_release_6178 | 7.10.6:patch_release_6189 | 7.10.6:patch_release_6194 | 7.10.6:patch_release_6199 | 7.10.6:patch_release_6204 | 7.10.6:patch_release_6205 | 7.10.6:patch_release_6209 | 7.10.6:patch_release_6210 | 7.10.6:patch_release_6214 | 7.10.6:patch_release_6215 | 7.10.6:patch_release_6216 | 7.10.6:patch_release_6218 | 7.10.6:patch_release_6219 | 7.10.6:patch_release_6220 | 7.10.6:patch_release_6227 | 7.10.6:patch_release_6230 | 7.10.6:patch_release_6233 | 7.10.6:patch_release_6235 | 7.10.6:patch_release_6236 | 7.10.6:patch_release_6239 | 7.10.6:patch_release_6241","eol":null,"hubHref":"/vendor/open-xchange/open-xchange_appsuite"},{"vendor":"ox software gmbh","product":"ox app suite","name":"OX App Suite","label":"ox app suite","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 7.10.6-rev48","noFixRecorded":false,"fixedIn":null},{"text":"≤ 8.12","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 7.10.6-rev48 | ≤ 8.12","eol":null,"hubHref":"/vendor/ox_software_gmbh/ox_app_suite"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6243_7.10.6_2023-08-01.pdf","label":"software.open-xchange.com/products/…","hostname":"software.open-xchange.com","tags":["Release Notes","Vendor Advisory"]},{"url":"https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0004.json","label":"documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0004.json","hostname":"documentation.open-xchange.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2023-11-02T13:01:20.424Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-02T11:53:52.767Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":31,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T23:15:32.884Z","stale":false,"partial":false}}