CVE-2025-63680HIGH 8.6EPSS p17.3%

CVE-2025-63680CVE-2025-63680

nero / backitup

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.

Scoring

CVSS 3.18.6 (HIGH)
VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS0.26% probability of exploitation · percentile 17.3% · 2026-06-18T12:00:27Z
Published2025-11-14
Last modified2026-06-01

Underlying weaknesses· 1

CWE-22

References

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

1

TypeTargetConfidenceTier
WeaknessImproper Limitation of a Pathname to a Restricted Directory ('Path Traversal')cwe-220%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.