8.1

CVE-2025-47206: qnap systems inc. file station 5 Out-of-bounds Write

CVSS: 8.1v3.1HighAnalyzed
Published 18-08-2025Last modified 26-08-2025
Open JSON

Vulnerability summary

CVE-2025-47206 is a high (CVSS 8.1) Out-of-bounds Write vulnerability in qnap systems inc. file station 5. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.9% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.1 (NVD)
EPSS score
0.38%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-08-2025
    PublishedVulnerability first disclosed.
  2. 26-08-2025
    Last modifiedVulnerability information updated.

Description

An out-of-bounds write vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to modify or corrupt memory. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.4933 and later

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.38%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

0.00 pp

From 0.38% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.38%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Qnap1 product
Qnap systems inc.1 product

2 vendors · 2 products

References

1 links