7.0
HIGH CVSS 4.0
CVE-2025-52861
VioStor Path Traversal Vulnerability
Description

A path traversal vulnerability has been reported to affect VioStor. If a remote attacker gains an administrator account, they can then exploit the vulnerability to read the contents of unexpected files or system data. We have already fixed the vulnerability in the following version: VioStor 5.1.6 build 20250621 and later

INFO

Published Date :

Aug. 29, 2025, 6:15 p.m.

Last Modified :

Aug. 29, 2025, 6:15 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2025-52861 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH [email protected]
Solution
Update to VioStor 5.1.6 build 20250621 or later to fix path traversal.
  • Update VioStor to version 5.1.6 build 20250621 or later.
  • Ensure administrator accounts are secured.
  • Monitor for unauthorized file access.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-52861.

URL Resource
https://www.qnap.com/en/security-advisory/qsa-25-28
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-52861 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-52861 vulnerability anywhere in the article.

  • Daily CyberSecurity
QNAP Patches Critical Flaw (CVE-2025-52856) with CVSS 9.3

QNAP has released a security advisory addressing multiple vulnerabilities affecting the QVR firmware on legacy VioStor NVR devices. The flaws include an improper authentication bug and a path traversa ... Read more

Published Date: Aug 29, 2025 (2 days, 6 hours ago)

The following table lists the changes that have been made to the CVE-2025-52861 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Aug. 29, 2025

    Action Type Old Value New Value
    Added Description A path traversal vulnerability has been reported to affect VioStor. If a remote attacker gains an administrator account, they can then exploit the vulnerability to read the contents of unexpected files or system data. We have already fixed the vulnerability in the following version: VioStor 5.1.6 build 20250621 and later
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-22
    Added Reference https://www.qnap.com/en/security-advisory/qsa-25-28
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.0
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability