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CVE-2023-51364

44
FAUCET Score

CVE-2023-51364 is a path traversal vulnerability impacting multiple QNAP operating system versions, including QTS, QuTS hero, and QuTScloud. With a CVSS score of 7.5 (HIGH), this vulnerability allows unauthenticated attackers to read arbitrary files over the network, potentially exposing sensitive data. While the vulnerability has a high FAUCET Risk Score of 75/100, there is currently no evidence of active exploitation, public exploit code, or significant community discussion. QNAP has released patches for affected versions, and users are advised to update their systems promptly.

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
41.58%
Probability of exploitation in next 30 days
EPSS Percentile
98.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.4158 is in the 97th percentile among its peer group of 51,506 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