CVE-2025-52856
Last modified
CVE-2025-52856 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An improper authentication vulnerability has been reported to affect VioStor. If a remote attacker, they can then exploit the vulnerability to compromise the security of the system. We have already fixed the vulnerability in the following version: VioStor 5.1.6 build 20250621 and later. EPSS estimates a 0.62% chance of exploitation in the next 30 days.
Description
An improper authentication vulnerability has been reported to affect VioStor. If a remote attacker, they can then exploit the vulnerability to compromise the security of the system. We have already fixed the vulnerability in the following version: VioStor 5.1.6 build 20250621 and later
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Qnap | Qvr | >= 5.1.0, < 5.1.6 |
| Qnap | Qvr | 5.1.6 |
References
- https://www.qnap.com/en/security-advisory/qsa-25-29Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-52856?
How severe is CVE-2025-52856?
How do I fix CVE-2025-52856?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-52841Cross-Site Request Forgery (CSRF) vulnerability in Laundry o…8.8
- CVE-2025-52842Improper Neutralization of Input During Web Page Generation …6.1
- CVE-2025-5285The Product Subtitle for WooCommerce plugin for WordPress is…6.4
- CVE-2025-52853A NULL pointer dereference vulnerability has been reported t…4.9
- CVE-2025-52854A NULL pointer dereference vulnerability has been reported t…4.9
- CVE-2025-52855A NULL pointer dereference vulnerability has been reported t…4.9
- CVE-2025-52857A NULL pointer dereference vulnerability has been reported t…4.9
- CVE-2025-52858A NULL pointer dereference vulnerability has been reported t…4.9
- CVE-2025-52859A NULL pointer dereference vulnerability has been reported t…4.9
- CVE-2025-5286The Bold Page Builder plugin for WordPress is vulnerable to …6.4
- CVE-2025-52860A NULL pointer dereference vulnerability has been reported t…4.9
- CVE-2025-52861A path traversal vulnerability has been reported to affect V…7
Are you affected by CVE-2025-52856?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST