CVE-2025-59385: QNAP Systems QTS · CWE-290
Affects QNAP Systems QTSSource CVE Database V5
Not known to be exploited · CVSS 8.1 High : upgrade to 5.3.0 or 5.2.7 soon.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.3.0, 5.2.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:UExploitation evidence
Disclosed: evidence found.
CVE published 16 Dec 2025
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 QNAP Systems QTS to 5.3.0 or 5.2.7.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| QNAP Systems Inc. QTS | Affected
| Fixed in
|
AI-suggested
Organizations should immediately verify their QNAP QTS version and upgrade to the patched versions: QTS 5.2.7.3297 build 20251024 or later, or the corresponding QuTS hero versions. If immediate patching is not feasible, restrict network access to the NAS management interfaces by implementing firewall rules that limit access to trusted IP addresses only. Disable any unnecessary remote management features and enforce strong network segmentation to isolate NAS devices from untrusted networks. Monitor network traffic and device logs for unusual authentication attempts or access patterns indicative of exploitation attempts. Additionally, implement regular backups stored offline or on separate systems to mitigate data loss risks. Stay informed on QNAP security advisories for any updates or additional mitigations.
Description
An authentication bypass by spoofing vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to access resources which are not otherwise accessible without proper authentication. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3297 build 20251024 and later QuTS hero h5.2.7.3297 build 20251024 and later QuTS hero h5.3.1.3292 build 20251024 and later