Path Parsing Flaw in Nero BackItUp Affects Security
CVE-2025-63680

8.6HIGH

Key Information:

Vendor

Nero

Status
Nero BackItUp
Vendor
CVE Published:
14 November 2025

What is CVE-2025-63680?

Nero BackItUp, part of the Nero Productline, is exposed to a path parsing and UI rendering flaw that can lead to arbitrary code execution. This occurs when an attacker crafts a unique entry that exploits the Windows ShellExecuteW fallback extension resolution. By establishing a specially designed folder with a trailing dot and a script sharing the same name, Nero BackItUp visually represents the script as a folder icon. Once this occurs, triggering the ShellExecuteW function can execute the script without user consent, thus compromising system security.

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References

https://github.com/PotatoHamm/Nero-Productline-Vulnerability

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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