CVE-2025-63680Public exploit

Code execution via spoofed folder entry

Published Nov 14, 2025 · Updated Nov 14, 2025

Path parsing in Nero BackItUp 2025 and earlier allows local users to execute code via a crafted file-browser entry. The file browser mis-renders a same-basename script beside a trailing-dot directory as a folder, then passes the clicked path to ShellExecuteW for PATHEXT fallback execution. A user must open the crafted directory and click the spoofed folder; the script then runs with the current user's privileges.

CVSS severity8.6
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path parsing in Nero BackItUp 2025 and earlier allows local users to execute code via a crafted file-browser entry. The file browser mis-renders a same-basename script beside a trailing-dot directory as a folder, then passes the clicked path to ShellExecuteW for PATHEXT fallback execution. A user must open the crafted directory and click the spoofed folder; the script then runs with the current user's privileges.

The record

CVE
CVE-2025-63680
Published
Nov 14, 2025
Updated
Nov 14, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.6CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1204.002User Execution: Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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