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7.5
HIGH CVSS 3.1
CVE-2023-39296
QTS, QuTS hero
Description

A prototype pollution vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to override existing attributes with ones that have incompatible type, which may lead to a crash via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.3.2578 build 20231110 and later QuTS hero h5.1.3.2578 build 20231110 and later

INFO

Published Date :

Jan. 5, 2024, 5:15 p.m.

Last Modified :

Nov. 21, 2024, 8:15 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2023-39296 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Qnap quts_hero
2 Qnap qts
: Total Affected Vendor : 1 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
Solution
This information is provided by the 3rd party feeds.
  • Apply the solution referenced in the QSA-23-64 advisory
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-39296.

URL Resource
https://www.qnap.com/en/security-advisory/qsa-23-64 Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-23-64 Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-39296 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-39296 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-39296 vulnerability anywhere in the article.

  • Daily CyberSecurity
Critical .NET Flaw (CVE-2025-55315) in QNAP: NAS Backup Utility Vulnerable to Credential Theft

Earlier, Microsoft released a security update to address a critical vulnerability in ASP.NET, identified as CVE-2025-55315 with a CVSS score of 9.8. At the time, the .NET team noted that the actual se ... Read more

Published Date: Oct 28, 2025 (1 week ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-39296 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://www.qnap.com/en/security-advisory/qsa-23-64
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jan. 11, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://www.qnap.com/en/security-advisory/qsa-23-64 No Types Assigned https://www.qnap.com/en/security-advisory/qsa-23-64 Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:o:qnap:qts:5.1.0.2348:build_20230325:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.0.2399:build_20230515:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.0.2418:build_20230603:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.0.2444:build_20230629:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.0.2466:build_20230721:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.1.2491:build_20230815:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.2.2533:build_20230926:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:qnap:quts_hero:h5.1.0.2409:build_20230525:*:*:*:*:*:* *cpe:2.3:o:qnap:quts_hero:h5.1.0.2424:build_20230609:*:*:*:*:*:* *cpe:2.3:o:qnap:quts_hero:h5.1.0.2453:build_20230708:*:*:*:*:*:* *cpe:2.3:o:qnap:quts_hero:h5.1.0.2466:build_20230721:*:*:*:*:*:* *cpe:2.3:o:qnap:quts_hero:h5.1.1.2488:build_20230812:*:*:*:*:*:* *cpe:2.3:o:qnap:quts_hero:h5.1.2.2534:build_20230927:*:*:*:*:*:*
  • CVE Received by [email protected]

    Jan. 05, 2024

    Action Type Old Value New Value
    Added Description A prototype pollution vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to override existing attributes with ones that have incompatible type, which may lead to a crash via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.3.2578 build 20231110 and later QuTS hero h5.1.3.2578 build 20231110 and later
    Added Reference QNAP Systems, Inc. https://www.qnap.com/en/security-advisory/qsa-23-64 [No types assigned]
    Added CWE QNAP Systems, Inc. CWE-1321
    Added CVSS V3.1 QNAP Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.42 }} -0.13%

score

0.60981

percentile