CVE-2023-47218
HighExploitedPublic exploitAn OS command injection vulnerability has been reported to affect several QNAP operating system versions.
Published Feb 13, 2024 · Updated Dec 10, 2025
Key Facts
Patch immediately- CVE-2023-47218 is a high-severity vulnerability (CVSS 8.3 v3.1) affecting QTS (Qnap), QuTScloud (Qnap), QuTS hero (Qnap).
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Feb 16, 2024. Public exploit code is available.
- EPSS estimates a 90% probability of exploitation in the next 30 days.
- Fixed versions are available, including QTS 5.1.5.2645, QTS 5.1.5.2645 build 20240116, QuTS hero h5.1.5.2647.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
8.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
EPSS (30-day exploit likelihood)
90%
Higher than 99.7% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2023-47218 brief as a PDF
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Description
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 QuTS hero h5.1.5.2647 build 20240118 and later QuTScloud c5.1.5.2651 and later
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Feb 16, 2024 | n/a | Not reported |
| CIRCL KEV | Feb 16, 2024 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
8 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| QTSQnap | 5.1.5.2645, >= 5.1.x | 5.1.5.2645 |
| QuTScloudQnap | >= c5.x | c5.1.5.2651 |
| QuTS heroQnap | h5.1.5.2647, >= h5.1.x | h5.1.5.2647 |
Patched Releases
QTS
5.1.5.2645, 5.1.5.2645 build 20240116
QuTS hero
h5.1.5.2647, h5.1.5.2647 build 20240118
QuTScloud
c5.1.5.2651
Timeline
Publicly disclosed
Feb 13, 2024
Added to Industry KEV feed
Feb 16, 2024
Added to CIRCL KEV
Feb 16, 2024
Last updated
Dec 10, 2025
Weakness Type
- CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- advisoryhttps://www.qnap.com/en/security-advisory/qsa-23-57
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
An OS command injection vulnerability has been reported to affect several QNAP operating system versions.
Affected: QTS (Qnap) versions 5.1.5.2645, >= 5.1.x; QuTScloud (Qnap) versions >= c5.x; QuTS hero (Qnap) versions h5.1.5.2647, >= h5.1.x. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Feb 16, 2024.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including QTS 5.1.5.2645, QTS 5.1.5.2645 build 20240116, QuTS hero h5.1.5.2647.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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