CVE-2023-32971
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 · uneditedA buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.0.1.2425 build 20230609 and later QTS 5.1.0.2444 build 20230629 and later QTS 4.5.4.2467 build 20230718 and later QuTS hero h5.0.1.2515 build 20230907 and later QuTS hero h5.1.0.2424 build 20230609 and later QuTS hero h4.5.4.2476 build 20230728 and later QuTScloud c5.1.0.2498 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 analysis · high confidenceBuffer copy without checking size of input vulnerability in QNAP QTS, QuTS hero, and QuTScloud allows authenticated administrators to execute arbitrary code via network. The vulnerability stems from missing bounds checking during buffer operations.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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>= 4.5.0, < 4.5.4.2467>= 5.0.0, < 5.0.1.2425>= 5.1.0, < 5.1.0.2444>= h4.5.0, < h4.5.4.2476>= h5.0.0, < h5.0.1.2515>= h5.1.0, < h5.1.0.2424>= c5.0.1, < c5.1.0.2498CVSS 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
- Network
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify QNAP product typeDetermine whether the system is running QTS, QuTS hero, or QuTScloud. This can be done via the web interface System Information page or by running `uname -a` from the command line to check the kernel/os identification.Affected if The system is any of QTS, QuTS hero, or QuTScloud
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Locate installed version numberFind the firmware version through the QNAP web interface (Dashboard > About section) or via command line using the `qpkg --info` or `fw_printenv` commands if available.Affected if Version cannot be determined or is not visible in standard locations
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Compare version against affected rangesMatch the installed version to the affected ranges: For QTS: >= 4.5.0 and < 4.5.4.2467, >= 5.0.0 and < 5.0.1.2425, or >= 5.1.0 and < 5.1.0.2444. For QuTS hero: >= h4.5.0 and < h4.5.4.2476, >= h5.0.0 and < h5.0.1.2515, or >= h5.1.0 and < 5.1.0.2424. For QuTScloud: >= c5.0.1 and < c5.1.0.2498.Affected if Installed version falls within any of the listed affected version ranges for the detected product
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Verify administrative network access existsConfirm whether the QNAP admin interface (typically ports 8080 or 443) is exposed to the network. Check router/firewall rules and the System Administration > Security settings in the web console.Affected if Admin interface is network-accessible from untrusted networks (the vulnerability is exploitable via network by authenticated admins)
A system is affected if it runs QTS, QuTS hero, or QuTScloud with a version matching any of the listed vulnerable ranges AND has the admin interface network-accessible, allowing authenticated administrators to potentially exploit the buffer overflow via network.
Generated from the published advisory. Verify against your own configuration.
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 · scoped4.5.4.24675.0.1.24255.1.0.2444
Apply the available firmware updates for the respective QNAP product versions (QTS 5.0.1.2425+, QTS 5.1.0.2444+, QTS 4.5.4.2467+, QuTS hero h5.0.1.2515+, QuTS hero h5.1.0.2424+, QuTS hero h4.5.4.2476+, QuTScloud c5.1.0.2498+) to remediate this vulnerability.
QTS: 4.5.4.2467, 5.0.1.2425, or 5.1.0.2444 (depending on branch); QuTS hero: h4.5.4.2476, h5.0.1.2515, or h5.1.0.2424; QuTScloud: c5.1.0.2498
- 1. Identify the current QNAP system product (QTS, QuTS hero, or QuTScloud) and version by logging into the QNAP admin interface and checking System Administration > Firmware Version
- 2. If running QTS 4.5.x, upgrade to QTS 4.5.4.2467 (build 20230718) or later
- 3. If running QTS 5.0.x, upgrade to QTS 5.0.1.2425 (build 20230609) or later
- 4. If running QTS 5.1.x, upgrade to QTS 5.1.0.2444 (build 20230629) or later
- 5. If running QuTS hero h4.5.x, upgrade to QuTS hero h4.5.4.2476 (build 20230728) or later
- 6. If running QuTS hero h5.0.x, upgrade to QuTS hero h5.0.1.2515 (build 20230907) or later
- 7. If running QuTS hero h5.1.x, upgrade to QuTS hero h5.1.0.2424 (build 20230609) or later
- 8. If running QuTScloud, upgrade to c5.1.0.2498 or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-32971 — 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-2023-32971 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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