dbcve.org
QtsOperating system · Qnap

CVE-2024-48868

HIGH · 7.5 CVSS v3.1 Published 2024-12-06
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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 · unedited
An improper neutralization of CRLF sequences ('CRLF Injection') vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers to modify application data. We have already fixed the vulnerability in the following versions: QTS 5.1.9.2954 build 20241120 and later QTS 5.2.2.2950 build 20241114 and later QuTS hero h5.1.9.2954 build 20241120 and later QuTS hero h5.2.2.2952 build 20241116 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 confidence

This is a CRLF Injection (HTTP Response Splitting) vulnerability in QNAP QTS and QuTS hero operating systems. Attackers can inject Carriage Return and Line Feed characters into HTTP headers due to improper input sanitization, allowing them to modify application data or potentially perform HTTP response splitting attacks.

MitigationOrganizations should update affected QNAP devices to the specified fixed versions (QTS 5.1.9.2954 build 20241120 / 5.2.2.2950 build 20241114, or QuTS hero h5.1.9.2954 build 20241120 / h5.2.2.2952 build 20241116 or later) to remediate this vulnerability.

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
QtsOperating system
Affected:= 5.1.0.2348= 5.1.0.2399= 5.1.0.2418= 5.1.0.2444= 5.1.0.2466= 5.1.1.2491= 5.1.2.2533= 5.1.3.2578= 5.1.4.2596= 5.1.5.2645= 5.1.5.2679= 5.1.6.2722
Quts HeroOperating system
Affected:= h5.1.0.2409= h5.1.0.2424= h5.1.0.2453= h5.1.0.2466= h5.1.1.2488= h5.1.2.2534= h5.1.3.2578= h5.1.4.2596= h5.1.5.2647= h5.1.5.2680= h5.1.6.2734= h5.1.7.2770

CVSS 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
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

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

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the QNAP device model and firmware type
    Log into the QNAP admin console and navigate to Control Panel > System > Firmware Update, or check the dashboard for the device model and firmware information. Determine if the system is running QTS or QuTS hero.
    Affected if The device is running QTS or QuTS hero firmware.
  2. Check the installed QTS version
    In the QNAP admin interface, go to Control Panel > System > Firmware Update > Firmware Information, or access the system via SSH and run: cat /etc/config/def_quota_version 2>/dev/null || cat /proc/board_version 2>/dev/null || getsysinfo sysfirmware
    Affected if The QTS version matches any of these exact versions: 5.1.0.2348, 5.1.0.2399, 5.1.0.2418, 5.1.0.2444, 5.1.0.2466, 5.1.1.2491, 5.1.2.2533, 5.1.3.2578, 5.1.4.2596, 5.1.5.2645, 5.1.5.2679, or 5.1.6.2722.
  3. Check the installed QuTS hero version
    In the QNAP admin interface, go to Control Panel > System > Firmware Update > Firmware Information, or access the system via SSH and run: cat /etc/config/def_quota_version 2>/dev/null || cat /proc/board_version 2>/dev/null
    Affected if The QuTS hero version matches any of these exact versions: h5.1.0.2409, h5.1.0.2424, h5.1.0.2453, h5.1.0.2466, h5.1.1.2488, h5.1.2.2534, h5.1.3.2578, h5.1.4.2596, h5.1.5.2647, h5.1.5.2680, h5.1.6.2734, or h5.1.7.2770.
  4. Verify the web server is accessible and accepts HTTP requests
    Attempt to access the QNAP web interface via HTTP or HTTPS. The vulnerability exists in HTTP header handling, so the web server must be running and accessible.
    Affected if The QNAP web interface is accessible and the device is running one of the affected firmware versions.

The device is affected if it runs QTS version 5.1.0.2348 through 5.1.6.2722 or QuTS hero version h5.1.0.2409 through h5.1.7.2770.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Organizations should update affected QNAP devices to the specified fixed versions (QTS 5.1.9.2954 build 20241120 / 5.2.2.2950 build 20241114, or QuTS hero h5.1.9.2954 build 20241120 / h5.2.2.2952 build 20241116 or later) to remediate this vulnerability.

Recommended fix High confidence

QTS 5.1.9.2954 (build 20241120) / QTS 5.2.2.2950 (build 20241114) / QuTS hero h5.1.9.2954 (build 20241120) / QuTS hero h5.2.2.2952 (build 20241116) or later

  1. 1. Identify the current QTS or QuTS hero version installed on the device via the QNAP admin interface (System Administration > System Settings) or via CLI: cat /etc/config/platfom.cfg
  2. 2. For QTS systems: Upgrade to QTS 5.1.9.2954 (build 20241120) or later, or QTS 5.2.2.2950 (build 20241114) or later
  3. 3. For QuTS hero systems: Upgrade to QuTS hero h5.1.9.2954 (build 20241120) or later, or QuTS hero h5.2.2.2952 (build 20241116) or later
  4. 4. Initiate the upgrade via Control Panel > System > Firmware Update > Check for Update, or manually download the specific firmware version from download.qnap.com
  5. 5. Ensure the device remains powered on and connected throughout the update process
  6. 6. After reboot, verify the new firmware version is installed and matches one of the fixed builds listed above
Caveat Standard QNAP firmware update risks apply (ensure backups and UPS power); no specific breaking changes mentioned in advisory

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Qts Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-48868 in production — separate from our analysis above.

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