{"id":"CVE-2023-26258","aliases":["EUVD-2023-30082","GHSA-wvxg-vj6j-j677"],"status":"published","title":"Arcserve UDP through 9.0.6034 allows authentication bypass. The method getVersionInfo at...","description":"Arcserve UDP through 9.0.6034 allows authentication bypass. The method getVersionInfo at WebServiceImpl/services/FlashServiceImpl leaks the AuthUUID token. This token can be used at /WebServiceImpl/services/VirtualStandbyServiceImpl to obtain a valid session. This session can be used to execute any task as administrator.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.40035,"percentile":0.98641,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2023-07-03T00:00:00Z","modified":"2026-06-17T05:42:55Z","exploits":[{"source":"nuclei","id":"CVE-2023-26258","title":"Arcserve UDP \u003c= 9.0.6034 - Authentication Bypass","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-26258.yaml"}],"products":[{"vendor":"arcserve","product":"udp"}],"references":[{"url":"https://www.arcserve.com/products/arcserve-udp","tags":["x_transferred","Product"]},{"url":"https://www.mdsec.co.uk/2023/06/cve-2023-26258-remote-code-execution-in-arcserve-udp-backup/","tags":["x_transferred","Exploit","Technical Description","Third Party Advisory"]},{"url":"https://support.arcserve.com/s/article/KB000015720?language=en_US","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26258"},{"url":"https://www.mdsec.co.uk/2023/06/cve-2023-26258-remote-code-execution-in-arcserve-udp-backup"},{"url":"https://github.com/advisories/GHSA-wvxg-vj6j-j677"}],"sources":{"cve":[{"id":"CVE-2023-26258","description":"Arcserve UDP through 9.0.6034 allows authentication bypass. The method getVersionInfo at WebServiceImpl/services/FlashServiceImpl leaks the AuthUUID token. This token can be used at /WebServiceImpl/services/VirtualStandbyServiceImpl to obtain a valid session. This session can be used to execute any task as administrator.","status":"published","published":"2023-07-03T00:00:00Z","modified":"2024-11-25T18:13:36.921Z","updated_at":"2026-11-02T14:35:15.434947Z"}],"euvd":[{"id":"EUVD-2023-30082","description":"Arcserve UDP through 9.0.6034 allows authentication bypass. The method getVersionInfo at WebServiceImpl/services/FlashServiceImpl leaks the AuthUUID token. This token can be used at /WebServiceImpl/services/VirtualStandbyServiceImpl to obtain a valid session. This session can be used to execute any task as administrator.","status":"published","published":"2023-07-03T00:00:00Z","modified":"2024-11-25T18:13:36Z","updated_at":"2026-11-03T00:04:48.805983Z"}],"ghsa":[{"id":"GHSA-wvxg-vj6j-j677","title":"Arcserve UDP through 9.0.6034 allows authentication bypass. The method getVersionInfo at...","description":"Arcserve UDP through 9.0.6034 allows authentication bypass. The method getVersionInfo at WebServiceImpl/services/FlashServiceImpl leaks the AuthUUID token. This token can be used at /WebServiceImpl/services/VirtualStandbyServiceImpl to obtain a valid session. This session can be used to execute any task as administrator.","status":"published","published":"2023-07-03T15:30:45Z","modified":"2024-04-04T05:20:36Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:56:31.684074Z"}],"nvd":[{"id":"CVE-2023-26258","description":"Arcserve UDP through 9.0.6034 allows authentication bypass. The method getVersionInfo at WebServiceImpl/services/FlashServiceImpl leaks the AuthUUID token. This token can be used at /WebServiceImpl/services/VirtualStandbyServiceImpl to obtain a valid session. This session can be used to execute any task as administrator.","status":"published","published":"2023-07-03T15:15:10.377Z","modified":"2026-06-17T05:42:55.113Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:08:14.715708Z"}]}}