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Fencer Vulns
high 8.7

CVE-2023-51365 in the critical feed json

QTS, QuTS hero, QuTScloud

published 2024-04-26 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-56086

cvss
8.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
34.8%
EPSS 34.8% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

A path traversal vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to read the contents of unexpected files and expose sensitive data via a network.

We have already fixed the vulnerability in the following versions: QTS 5.1.4.2596 build 20231128 and later QTS 4.5.4.2627 build 20231225 and later QuTS hero h5.1.3.2578 build 20231110 and later QuTS hero h4.5.4.2626 build 20231225 and later QuTScloud c5.1.5.2651 and later

Patch / fix

  • QNAP Systems Inc. QTS 4.5.4.2627 build 20231225, 5.1.4.2596 build 20231128
  • QNAP Systems Inc. QuTS hero h4.5.4.2626 build 20231225, h5.1.3.2578 build 20231110
  • qnap qts 4.5.4.2627 build 20231225, 5.1.4.2596 build 20231128
  • qnap quts_hero h4.5.4.2626 build 20231225, h5.1.3.2578 build 20231110

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

34.82% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

  • QNAP Systems Inc. QTS
  • QNAP Systems Inc. QuTS hero
  • QNAP Systems Inc. QuTScloud
  • qnap qts
  • qnap quts_hero

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.