CVE-2023-50358
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn 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
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysisUser input reaches a shell or system command without being fully separated from the command itself, so an attacker can append their own instructions. Because these run with the application's privileges, it often means full control of the host. The lasting fix is to avoid the shell entirely — call APIs directly and pass arguments as data, never as concatenated strings.
General guidance for the os command injection class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data>= 4.2.0, < 4.2.6>= 4.3.0, < 4.3.3.2644>= 4.3.4, < 4.3.4.2675>= 4.3.5, < 4.3.6.2665>= 4.5.1, < 4.5.4.2627>= 5.1.0, < 5.1.5.2645= 4.2.6= 4.5.4.2627= 5.1.5.2645>= h4.5.0, < h4.5.4.2626>= h5.0.0, < h5.1.5.2647= h4.5.4.2626= h5.1.5.2647>= c5.0.0.1919, < c5.1.5.2651CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Adjacent
- Complexity
- High
- Privileges
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped4.2.64.3.3.26444.3.4.2675
QTS 4.2.6 (build 20240131), QTS 4.3.3.2644 (build 20240131), QTS 4.3.4.2675 (build 20240131), QTS 4.3.6.2665 (build 20240131), QTS 4.5.4.2627 (build 20231225), QTS 5.1.5.2645 (build 20240116), QuTS hero h4.5.4.2626 (build 20231225), QuTS hero h5.1.5.2647 (build 20240118), or QuTScloud c5.1.5.2651 de
- 1. Identify the current QNAP firmware version by logging into the admin interface and checking System Administration > Firmware Update.
- 2. Determine the appropriate upgrade path based on current version: For QTS 4.2.x, upgrade to QTS 4.2.6 build 20240131 or later; For QTS 4.3.0-4.3.3.x, upgrade to QTS 4.3.3.2644 build 20240131 or later; For QTS 4.3.4.x, upgrade to QTS 4.3.4.2675 build 20240131 or later; For QTS 4.3.5.x, upgrade to QTS 4.3.6.2665 build 20240131 or later; For QTS 4.5.x, upgrade to QTS 4.5.4.2627 build 20231225 or la
- 3. Download the firmware from the official QNAP download center: https://www.qnap.com/en-us/download
- 4. Navigate to Control Panel > System Administration > Firmware Update and select Manual Firmware Update.
- 5. Upload the downloaded .img file and initiate the update.
- 6. After reboot, verify the new build number matches or exceeds the recommended fixed version for your product line.
Generated from the published advisory — verify against the referenced sources before acting.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-50358 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-50358 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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