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CVE-2023-51365

40
FAUCET Score

CVE-2023-51365 is a path traversal vulnerability impacting several QNAP operating system versions, including QTS, QuTS hero, and QuTScloud. This vulnerability, rated High severity with a CVSS score of 7.5, allows unauthenticated attackers to remotely read sensitive files on affected systems due to low attack complexity and no user interaction required. While no active exploitation, public exploit code, or significant community discussion has been observed, QNAP has released patches for affected versions to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.5.1, < 4.5.4.2627CPE matchmatch criteria
cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
>= 5.1.0, < 5.1.4.2596CPE matchmatch criteria
cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
4.5.4.2627CPE matchmatch criteria
cpe:2.3:o:qnap:qts:4.5.4.2627:-:*:*:*:*:*:*
5.1.4.2596CPE matchmatch criteria
cpe:2.3:o:qnap:qts:5.1.4.2596:-:*:*:*:*:*:*
>= h4.5.0, < h4.5.4.2626CPE matchmatch criteria
cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.7HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.8
CvssVersion
3.1

Exploit Intelligence

EPSS Score
34.82%
Probability of exploitation in next 30 days
EPSS Percentile
98.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.3482 is in the 97th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

qnap.com / en/security-advisory/qsa-24-14
Vendor Advisory