NVD / CVE Program· CNA qnap

CVE-2023-50358: QTS, QuTS hero, QuTScloud

Noroxi assessment

Priority: Monitor (action score 27/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 13.5% (FIRST EPSS); higher than 96.4% of all records.
Someone on the same network segment can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

An OS command injection vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to execute commands via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.5.2645 build 20240116 and later QTS 4.5.4.2627 build 20231225 and later QTS 4.3.6.2665 build 20240131 and later QTS 4.3.4.2675 build 20240131 and later QTS 4.3.3.2644 build 20240131 and later QTS 4.2.6 build 20240131 and later QuTS hero h5.1.5.2647 build 20240118 and later QuTS hero h4.5.4.2626 build 20231225 and later QuTScloud c5.1.5.2651 and later

MediumCVSS 5.8 · v3.1—No exploit No fix recorded

BDU:2024-01358

Published: Feb 12, 2024
Updated: Jun 17, 2026
EPSS: 13.5% · 96th percentile
CWE: CWE-78

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 23 / 40 · 5.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 4 / 30 · 13.5%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · qnap: 5.8; NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
qnap	qts	cpe:2.3:o:qnap:qts
qnap	quts hero	cpe:2.3:o:qnap:quts_hero
qnap	qutscloud	cpe:2.3:o:qnap:qutscloud

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

qnap qts4.2.0 and later · before 4.2.6
qnap qts4.3.0 and later · before 4.3.3.2644
qnap qts4.3.4 and later · before 4.3.4.2675
qnap qts4.3.5 and later · before 4.3.6.2665
qnap qts4.5.1 and later · before 4.5.4.2627
qnap qts5.1.0 and later · before 5.1.5.2645
qnap qts4.2.6
qnap qts4.5.4.2627
qnap qts5.1.5.2645
qnap quts heroh4.5.0 and later · before h4.5.4.2626
qnap quts heroh5.0.0 and later · before h5.1.5.2647
qnap quts heroh4.5.4.2626
qnap quts heroh5.1.5.2647
qnap qutscloudc5.0.0.1919 and later · before c5.1.5.2651

Versions reported by the vendor

Affected version ranges reported by the assigning authority (qnap). Independent of NVD's CPE analysis and usually ahead of it.

QNAP Systems Inc. QTS
- 5.x and later · before 5.1.5.2645 build 20240116affected
- 4.5.x, 4.4.x and later · before 4.5.4.2627 build 20231225affected
- 4.3.6, 4.3.5 and later · before 4.3.6.2665 build 20240131affected
- 4.3.4 and later · before 4.3.4.2675 build 20240131affected
- 4.3.x and later · before 4.3.3.2644 build 20240131affected
- 4.2.x and later · before 4.2.6 build 20240131affected
QNAP Systems Inc. QuTS hero
- h5.x and later · before h5.1.5.2647 build 20240118affected
- h4.x and later · before h4.5.4.2626 build 20231225affected
QNAP Systems Inc. QuTScloud
- c5.x and later · before c5.1.5.2651affected

Same product

qnap: all records

Other highest-scoring records for the same primary product.

CVE-2020-2509Command Injection Vulnerability in QTS and QuTS heroKEV
79This week
CVE-2018-19949If exploited, this command injection vulnerability could allow remote attackers to run arbitrary commands.KEV
78This week
CVE-2019-7193This improper input validation vulnerability allows remote attackers to inject arbitrary code to the system.KEV
73This week

Published before and after this one in the same product

← EarlierCVE-2023-50359Feb 2, 2024 · An unchecked return value vulnerability has been reported to affect several QNAP operating system versions.
26Monitor
← EarlierCVE-2023-47218Feb 12, 2024 · QTS, QuTS hero, QuTScloud
60This week
Later →CVE-2023-32969Mar 8, 2024 · Network & Virtual Switch
19Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Palo Alto Networks Unit 42finder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2023-23368101 days apartQTS, QuTS hero, QuTScloud
45Plan
CVE-2023-3929710 days apartQTS, QuTS hero, QuTScloud
35Monitor
CVE-2023-23362143 days apartQTS, QuTS hero, QuTScloud
35Monitor
CVE-2023-34974207 days apartQTS, QuTS hero, QuTScloud, QVR, QES
35Monitor
CVE-2024-21898207 days apartAn OS command injection vulnerability has been reported to affect several QNAP operating system versions.
35Monitor
CVE-2024-50393298 days apartA command injection vulnerability has been reported to affect several QNAP operating system versions.
34Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Someone on the same network segment can trigger it.
No account or password is required.
No user action is required.
Special conditions such as timing or configuration are required.

If successful

Confidentiality: low · data can be read
Integrity: low · data or configuration can be modified
Availability: low · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector: Adjacent
Attack complexity: High
Privileges required: None
User interaction: None
Scope: Changed
Confidentiality impact: Low
Integrity impact: Low
Availability impact: Low

Weakness class (CWE)

CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSS vector

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

nvd-secondary

Root cause

User input is inserted as text into a shell command. The shell may interpret special characters in the input as part of the command.

The bug in code

The whole CWE-78 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const host = req.body.host;
2exec("ping -c 1 " + host, onResult);

Fixed

1const host = req.body.host;
2if (!/^[a-z0-9.-]{1,253}$/i.test(host)) return res.sendStatus(400);
3execFile("ping", ["-c", "1", host], onResult);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

www.bsi.bund.de/SharedDocs/Cybersicherheitswarnungen/DE/2024/2024-213941-1032

Show all references (1 more)

www.qnap.com/en/security-advisory/qsa-23-57

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records