{"id":"CVE-2025-4679","aliases":["EUVD-2025-15423","GHSA-544f-g2r6-4rv9"],"status":"published","title":"A vulnerability in Synology Active Backup for Microsoft 365 allows remote authenticated attackers...","description":"A vulnerability in Synology Active Backup for Microsoft 365 allows remote authenticated attackers to obtain sensitive information via unspecified vectors.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01092,"percentile":0.65852,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-522"],"published":"2025-05-16T08:36:37Z","modified":"2026-06-17T09:33:46Z","exploits":[{"source":"pocgithub","id":"fevar54/CVE-2025-4679-SecureOAuth-Demo---Enfoque-educativo","title":"fevar54/CVE-2025-4679-SecureOAuth-Demo---Enfoque-educativo","date":"2025-12-01","url":"https://github.com/fevar54/CVE-2025-4679-SecureOAuth-Demo---Enfoque-educativo"}],"products":[{"vendor":"synology","product":"active backup for microsoft 365"},{"vendor":"synology","product":"active_backup_for_microsoft_365"}],"references":[{"url":"https://www.synology.com/en-global/security/advisory/Synology_SA_25_06","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://modzero.com/en/blog/when-backups-open-backdoors-synology-active-backup-m365/"},{"url":"https://modzero.com/static/MZ-25-02_modzero_Synology-Active-Backup-M365.pdf"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4679"},{"url":"https://modzero.com/en/blog/when-backups-open-backdoors-synology-active-backup-m365"},{"url":"https://github.com/advisories/GHSA-544f-g2r6-4rv9"}],"sources":{"cve":[{"id":"CVE-2025-4679","description":"A vulnerability in Synology Active Backup for Microsoft 365 allows remote authenticated attackers to obtain sensitive information via unspecified vectors.","status":"published","published":"2025-05-16T08:36:37.066Z","modified":"2025-07-02T11:50:13.308Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:32:48.512547Z"}],"euvd":[{"id":"EUVD-2025-15423","description":"A vulnerability in Synology Active Backup for Microsoft 365 allows remote authenticated attackers to obtain sensitive information via unspecified vectors.","status":"published","published":"2025-05-16T08:36:37Z","modified":"2025-07-02T11:50:13Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:32:14.813568Z"}],"ghsa":[{"id":"GHSA-544f-g2r6-4rv9","title":"A vulnerability in Synology Active Backup for Microsoft 365 allows remote authenticated attackers...","description":"A vulnerability in Synology Active Backup for Microsoft 365 allows remote authenticated attackers to obtain sensitive information via unspecified vectors.","status":"published","published":"2025-05-16T09:30:36Z","modified":"2025-07-02T12:33:13Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T15:02:53.302581Z"}],"nvd":[{"id":"CVE-2025-4679","description":"A vulnerability in Synology Active Backup for Microsoft 365 allows remote authenticated attackers to obtain sensitive information via unspecified vectors.","status":"published","published":"2025-05-16T09:15:18.257Z","modified":"2026-06-17T09:33:46.653Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:11:08.321805Z"}]}}