CVE-2025-52856CWE-287

CVE-2025-52856

Critical · published August 29, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
50.8
In the wild
Unconfirmed
What it is

🚨 A single misstep in authentication could let a remote attacker stroll right into your VioStor system! 🔥 Think of this vulnerability like a poorly secured gate at a theme park. If the staff forget to check tickets, anyone can walk in and ride the roller coasters without paying, wreaking havoc! 🎢 An attacker can exploit this vulnerability to fully compromise the system, gaining unauthorized access to sensitive data and potentially taking control of critical operations. This could lead to devastating consequences, like data breaches or service disruptions, putting your entire network at risk! ⚠️

Put simply

Think of this vulnerability like a poorly secured gate at a theme park. If the staff forget to check tickets, anyone can walk in and ride the roller coasters without paying, wreaking havoc! 🎢 This improper authentication vulnerability allows a remote attacker to bypass security controls, essentially tricking the system into granting access without proper verification.

What to do

An attacker can exploit this vulnerability to fully compromise the system, gaining unauthorized access to sensitive data and potentially taking control of critical operations. This could lead to devastating consequences, like data breaches or service disruptions, putting your entire network at risk! ⚠️ To safeguard your system, update to VioStor version 5.1.6 build 20250621 or later immediately. Make sure to review and enhance your authentication protocols to prevent similar vulnerabilities in the future.🛡️ You’ve got this! Stay ahead by following these steps and keep your system secure! 💪✨

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00656 · 50.8th percentile
Weakness
CWE-287 · Improper Authentication
Published
2025-08-29T22:15Z
Affected products (2)
ProductVersionsFixed in
qnap/qvr≥ 5.1.0, < 5.1.65.1.6
qnap/qvrall versions—
References (1)
EPSS history
Timeline
  • 29 AUG 17:17Z
    VioStor
    cvelistv5