{"id":"CVE-2025-63680","aliases":["EUVD-2025-197651","GHSA-qhf9-chp9-gc7j"],"status":"published","title":"Nero BackItUp in the Nero Productline is vulnerable to a path parsing/UI rendering flaw (CWE-22)...","description":"Nero BackItUp in the Nero Productline is vulnerable to a path parsing/UI rendering flaw (CWE-22) that, in combination with Windows ShellExecuteW fallback extension resolution, leads to arbitrary code execution when a user clicks a crafted entry. By creating a trailing-dot folder and placing a same-basename script, Nero BackItUp renders the file as a folder icon and then invokes ShellExecuteW, which executes the script via PATHEXT fallback (.COM/.EXE/.BAT/.CMD). The issue affects recent Nero BackItUp product lines (2019-2025 and earlier) and has been acknowledged by the vendor.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00307,"percentile":0.23866,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2025-11-14T00:00:00Z","modified":"2026-11-05T14:10:00Z","products":[{"vendor":"nero","product":"backitup"}],"references":[{"url":"https://github.com/PotatoHamm/Nero-Productline-Vulnerability","tags":["Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-63680"},{"url":"https://github.com/advisories/GHSA-qhf9-chp9-gc7j"}],"sources":{"cve":[{"id":"CVE-2025-63680","description":"Nero BackItUp in the Nero Productline is vulnerable to a path parsing/UI rendering flaw (CWE-22) that, in combination with Windows ShellExecuteW fallback extension resolution, leads to arbitrary code execution when a user clicks a crafted entry. By creating a trailing-dot folder and placing a same-basename script, Nero BackItUp renders the file as a folder icon and then invokes ShellExecuteW, which executes the script via PATHEXT fallback (.COM/.EXE/.BAT/.CMD). The issue affects recent Nero BackItUp product lines (2019-2025 and earlier) and has been acknowledged by the vendor.","status":"published","published":"2025-11-14T00:00:00Z","modified":"2025-11-14T19:21:27.874Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:32:45.797843Z"}],"euvd":[{"id":"EUVD-2025-197651","description":"Nero BackItUp in the Nero Productline is vulnerable to a path parsing/UI rendering flaw (CWE-22) that, in combination with Windows ShellExecuteW fallback extension resolution, leads to arbitrary code execution when a user clicks a crafted entry. By creating a trailing-dot folder and placing a same-basename script, Nero BackItUp renders the file as a folder icon and then invokes ShellExecuteW, which executes the script via PATHEXT fallback (.COM/.EXE/.BAT/.CMD). The issue affects recent Nero BackItUp product lines (2019-2025 and earlier) and has been acknowledged by the vendor.","status":"published","published":"2025-11-14T00:00:00Z","modified":"2025-11-14T19:21:27Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:49:16.95916Z"}],"ghsa":[{"id":"GHSA-qhf9-chp9-gc7j","title":"Nero BackItUp in the Nero Productline is vulnerable to a path parsing/UI rendering flaw (CWE-22)...","description":"Nero BackItUp in the Nero Productline is vulnerable to a path parsing/UI rendering flaw (CWE-22) that, in combination with Windows ShellExecuteW fallback extension resolution, leads to arbitrary code execution when a user clicks a crafted entry. By creating a trailing-dot folder and placing a same-basename script, Nero BackItUp renders the file as a folder icon and then invokes ShellExecuteW, which executes the script via PATHEXT fallback (.COM/.EXE/.BAT/.CMD). The issue affects recent Nero BackItUp product lines (2019-2025 and earlier) and has been acknowledged by the vendor.","status":"published","published":"2025-11-14T21:30:29Z","modified":"2025-11-14T21:30:36Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:04:49.095554Z"}],"nvd":[{"id":"CVE-2025-63680","description":"Nero BackItUp in the Nero Productline is vulnerable to a path parsing/UI rendering flaw (CWE-22) that, in combination with Windows ShellExecuteW fallback extension resolution, leads to arbitrary code execution when a user clicks a crafted entry. By creating a trailing-dot folder and placing a same-basename script, Nero BackItUp renders the file as a folder icon and then invokes ShellExecuteW, which executes the script via PATHEXT fallback (.COM/.EXE/.BAT/.CMD). The issue affects recent Nero BackItUp product lines (2019-2025 and earlier) and has been acknowledged by the vendor.","status":"published","published":"2025-11-14T19:16:01.36Z","modified":"2026-11-05T14:10:00.273Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-05T19:55:51.56159Z"}]}}