CVE-2025-59381: QNAP Systems QTS · Path Traversal
Affects QNAP Systems QTSSource CVE Database V5
Not known to be exploited · CVSS 6.9 Medium : upgrade to 5.2.8.3332 build 20251128 when convenient.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.2.8.3332 build 20251128, h5.3.2.3354 build 20251225, h5.2.8.3321 build 20251117
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 2 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade QTS to 5.2.8.3332 build 20251128; QuTS hero to h5.3.2.3354 build 20251225 or h5.2.8.3321 build 20251117.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| QNAP Systems Inc.QTS | Affected
| Fixed in
|
| QNAP Systems Inc.QuTS hero | Affected
| Fixed in
|
AI-suggested
Apply the official patches released by QNAP in QTS 5.2.8.3332 build 20251128 and later, QuTS hero h5.2.8.3321 build 20251117 and later, or QuTS hero h5.3.2.3354 build 20251225 and later. Upgrading to these fixed versions will remediate the vulnerability. No other mitigation or workaround is indicated by the vendor advisory.
Description
CVE-2025-59381 is a path traversal vulnerability in QNAP Systems Inc. QTS operating system. It allows a remote attacker with administrator privileges to read unauthorized files or system data. The vulnerability affects certain QTS and QuTS hero versions prior to the fixed releases. The issue has a medium severity rating with a CVSS score of 6.9. Official fixes have been released in QTS 5.2.8.3332 build 20251128 and later, QuTS hero h5.2.8.3321 build 20251117 and later, and QuTS hero h5.3.2.3354 build 20251225 and later.