6.9

CVE-2025-59381: qnap systems inc. qts Path Traversal

CVSS: 6.9v4.0MediumModified
Published 02-01-2026Last modified 09-06-2026
Open JSON

Vulnerability summary

CVE-2025-59381 is a medium (CVSS 6.9) Path Traversal vulnerability in qnap systems inc. qts. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.6% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.9/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.47%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 02-01-2026
    PublishedVulnerability first disclosed.
  2. 09-06-2026
    Last modifiedVulnerability information updated.

Description

A path traversal vulnerability has been reported to affect several QNAP operating system versions. 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 versions: QTS 5.2.8.3332 build 20251128 and later QuTS hero h5.2.8.3321 build 20251117 and later QuTS hero h5.3.2.3354 build 20251225 and later

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.47%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

+0.01 pp

From 0.46% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.47%

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

Qnap2 products
  • qts5.2.0.2737:build_20240417 | 5.2.0.2744:build_20240424 | 5.2.0.2782:build_20240601 | 5.2.0.2802:build_20240620 | 5.2.0.2823:build_20240711 | 5.2.0.2851:build_20240808 | 5.2.0.2860:build_20240817 | 5.2.1.2930:build_20241025 | 5.2.2.2950:build_20241114 | 5.2.3.3006:build_20250108 | 5.2.4.3070:build_20250312 | 5.2.4.3079:build_20250321 | 5.2.4.3092:build_20250403 | 5.2.5.3145:build_20250526 | 5.2.6.3195:build_20250715 | 5.2.6.3229:build_20250818 | 5.2.7.3256:build_20250913 | 5.2.7.3297:build_20251024
  • quts_heroh5.2.0.2737:build_20240417 | h5.2.0.2782:build_20240601 | h5.2.0.2789:build_20240607 | h5.2.0.2802:build_20240620 | h5.2.0.2823:build_20240711 | h5.2.0.2851:build_20240808 | h5.2.0.2860:build_20240817 | h5.2.1.2929:build_20241025 | h5.2.1.2940:build_20241105 | h5.2.2.2952:build_20241116 | h5.2.3.3006:build_20250108 | h5.2.4.3070:build_20250312 | h5.2.4.3079:build_20250321 | h5.2.5.3138:build_20250519 | h5.2.6.3195:build_20250715 | h5.2.7.3256:build_20250913 | h5.2.7.3297:build_20251024 | h5.3.0.3115:build_20250430 | h5.3.0.3145:build_20250530 | h5.3.0.3192:build_20250716
Qnap systems inc.2 products
  • qts≥ 5.2.0, < 5.2.8.3332 build 20251128
  • quts hero≥ h5.2.0, < h5.2.8.3321 build 20251117 | ≥ h5.3.0, < h5.3.2.3354 build 20251225

2 vendors · 4 products

References

1 links