CVE-2025-63680
BaseFortify
Publication date: 2025-11-14
Last updated on: 2025-11-18
Assigner: MITRE
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| nero | backitup | 2019 |
| nero | backitup | 2022 |
| nero | backitup | 2020 |
| nero | backitup | 2021 |
| nero | backitup | 2023 |
| nero | backitup | 2025 |
| nero | backitup | 2024 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-22 | The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in Nero BackItUp involves a path parsing and UI rendering flaw (CWE-22) that, combined with Windows ShellExecuteW fallback extension resolution, allows arbitrary code execution. An attacker can create a folder with a trailing dot and place a script with the same basename inside it. Nero BackItUp then displays the script as a folder icon and when the user clicks it, ShellExecuteW executes the script via fallback extensions like .COM, .EXE, .BAT, or .CMD, leading to code execution.
How can this vulnerability impact me? :
This vulnerability can lead to arbitrary code execution on the affected system when a user clicks a crafted entry in Nero BackItUp. This means an attacker could run malicious code with the user's privileges, potentially compromising the system, stealing data, or causing other harm.