{"api_version":"1","generated_at":"2026-06-13T18:22:48+00:00","cve":"CVE-2023-52951","urls":{"html":"https://cve.report/CVE-2023-52951","api":"https://cve.report/api/cve/CVE-2023-52951.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-52951","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-52951"},"summary":{"title":"CVE-2023-52951","description":"A cleartext transmission of sensitive information vulnerability in Synology Note Station Client before 2.2.4-703 allows man-in-the-middle attackers to obtain user credential.","state":"PUBLISHED","assigner":"synology","published_at":"2026-06-03 14:16:25","updated_at":"2026-06-05 18:20:33"},"problem_types":["CWE-319","CWE-319 Cleartext Transmission of Sensitive Information"],"metrics":[{"version":"3.1","source":"security@synology.com","type":"Primary","score":"5.9","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"5.9","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","data":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"references":[{"url":"https://www.synology.com/en-global/releaseNote/NoteStationClient","name":"https://www.synology.com/en-global/releaseNote/NoteStationClient","refsource":"security@synology.com","tags":["Release Notes"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-52951","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-52951","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Synology","product":"Synology Note Station Client","version":"affected * 2.2.4-703 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Zhao Runzi (赵润梓)","lang":"en"}],"nvd_cpes":[{"cve_year":"2023","cve_id":"52951","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"synology","cpe5":"note_station_client","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2023","cve_id":"52951","cve":"CVE-2023-52951","epss":"0.000150000","percentile":"0.029570000","score_date":"2026-06-10","updated_at":"2026-06-11 00:06:43"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2023-52951","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-06-03T15:44:15.548477Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-06-03T15:44:24.852Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"affected","product":"Synology Note Station Client","vendor":"Synology","versions":[{"lessThan":"2.2.4-703","status":"affected","version":"*","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Zhao Runzi (赵润梓)"}],"descriptions":[{"lang":"en","value":"A cleartext transmission of sensitive information vulnerability in Synology Note Station Client before 2.2.4-703 allows man-in-the-middle attackers to obtain user credential."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-319","description":"Cleartext Transmission of Sensitive Information","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-06-03T13:11:43.564Z","orgId":"db201096-a0cc-46c7-9a55-61d9e221bf01","shortName":"synology"},"references":[{"name":"Release note","tags":["vendor-advisory"],"url":"https://www.synology.com/en-global/releaseNote/NoteStationClient"}]}},"cveMetadata":{"assignerOrgId":"db201096-a0cc-46c7-9a55-61d9e221bf01","assignerShortName":"synology","cveId":"CVE-2023-52951","datePublished":"2026-06-03T13:11:43.564Z","dateReserved":"2024-09-24T08:35:52.122Z","dateUpdated":"2026-06-03T15:44:24.852Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-03 14:16:25","lastModifiedDate":"2026-06-05 18:20:33","problem_types":["CWE-319","CWE-319 Cleartext Transmission of Sensitive Information"],"metrics":{"cvssMetricV31":[{"source":"security@synology.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:synology:note_station_client:*:*:*:*:*:*:*:*","versionEndExcluding":"2.2.4-703","matchCriteriaId":"A575582E-B63C-4A6D-8715-987E13E8EFBE"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2023","CveId":"52951","Ordinal":"1","Title":"CVE-2023-52951","CVE":"CVE-2023-52951","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"52951","Ordinal":"1","NoteData":"A cleartext transmission of sensitive information vulnerability in Synology Note Station Client before 2.2.4-703 allows man-in-the-middle attackers to obtain user credential.","Type":"Description","Title":"CVE-2023-52951"}]}}}