CVE-2024-53699
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 out-of-bounds write vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained administrator access to modify or corrupt memory. We have already fixed the vulnerability in the following versions: QTS 5.2.3.3006 build 20250108 and later QuTS hero h5.2.3.3006 build 20250108 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 · moderate confidenceAn out-of-bounds write vulnerability in QNAP QTS and QuTS hero operating systems allows remote attackers who have already gained administrator-level access to modify or corrupt memory, potentially leading to arbitrary code execution or further system compromise.
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= 5.2.0.2737= 5.2.0.2744= 5.2.0.2782= 5.2.0.2802= 5.2.0.2823= 5.2.0.2851= 5.2.0.2860= 5.2.1.2930= 5.2.2.2950= h5.2.0.2737= h5.2.0.2782= h5.2.0.2789= h5.2.0.2802= h5.2.0.2823= h5.2.0.2851= h5.2.0.2860= h5.2.1.2929= h5.2.1.2940= h5.2.2.2952CVSS 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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Check QTS firmware versionLog into the QNAP admin console and navigate to Control Panel > System > Firmware, or run 'cat /etc/config/kernel_version' via SSH on the NAS. Look for the build number (e.g., 5.2.0.2737).Affected if The installed QTS version matches any of these: 5.2.0.2737, 5.2.0.2744, 5.2.0.2782, 5.2.0.2802, 5.2.0.2823, 5.2.0.2851, 5.2.0.2860, 5.2.1.2930, or 5.2.2.2950.
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Check QuTS hero firmware versionIf using QuTS hero, log into the admin console and go to Control Panel > System > Firmware, or run 'cat /etc/config/kernel_version' via SSH. Identify if the version starts with 'h' (e.g., h5.2.0.2737).Affected if The installed QuTS hero version matches any of these: h5.2.0.2737, h5.2.0.2782, h5.2.0.2789, h5.2.0.2802, h5.2.0.2823, h5.2.0.2851, h5.2.0.2860, h5.2.1.2929, h5.2.1.2940, or h5.2.2.2952.
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Verify admin interface accessibilityConfirm whether the QNAP admin web interface (ports 8080 or 443) is exposed to untrusted networks by reviewing firewall rules, router port forwarding, or VPN access controls.Affected if The administrator interface is reachable from untrusted networks, which would allow remote attackers to attempt credential theft or brute force to achieve the admin access required to exploit this vulnerability.
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Confirm admin account securityReview local admin accounts in Control Panel > Privilege > Users, or via 'getent passwd' via SSH. Check for weak passwords, default credentials, or accounts without two-factor authentication enabled.Affected if Weak, default, or compromised administrator credentials exist, providing the attacker the admin-level access needed to trigger the out-of-bounds write.
A user is affected if their QTS or QuTS hero version matches any of the listed vulnerable builds AND an attacker can obtain administrator-level access to the system.
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 · scopedApply the vendor-supplied patch by upgrading to QTS 5.2.3.3006 build 20250108 or later / QuTS hero h5.2.3.3006 build 20250108 or later. Additionally, restrict administrator interface access to trusted networks and enforce strong admin credentials to reduce the likelihood of initial compromise.
QTS 5.2.3.3006 (build 20250108) or later / QuTS hero h5.2.3.3006 (build 20250108) or later
- 1. Identify the current QTS or QuTS hero version running on the QNAP device
- 2. Back up all critical data and configurations according to QNAP best practices
- 3. Download the update: QTS 5.2.3.3006 (build 20250108) or later for QTS systems
- 4. Download the update: QuTS hero h5.2.3.3006 (build 20250108) or later for QuTS hero systems
- 5. Apply the firmware update through the QNAP administrative interface (Control Panel > Firmware Update)
- 6. Verify the system has updated to a version >= 5.2.3.3006 build 20250108
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-53699 — 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-2024-53699 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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