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Dap 1325 FirmwareOperating system · Dlink

CVE-2023-44403

HIGH · 8.8 CVSS v3.1 Published 2024-05-03
Fix available
A fix is available. Upgrade to 1.09b03 or later.
See remediation →
93/100
Remediation priority · Urgent
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
D-Link DAP-1325 HNAP SetWLanRadioSettings Channel Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1325 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of a request parameter provided to the HNAP1 SOAP endpoint. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-18822.

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

The D-Link DAP-1325 router contains a command injection vulnerability in the HNAP1 SOAP endpoint's SetWLanRadioSettings function. The Channel parameter is not validated before being passed to a system call, allowing an unauthenticated attacker to execute arbitrary commands as root.

MitigationApply the vendor-supplied firmware patch when available. Until then, restrict network access to the device and monitor for exploitation attempts.

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
Dap 1325 FirmwareOperating system
Affected:< 1.09b03

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
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/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 checks

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

  1. Check the installed firmware version
    Access the router's web administration interface and navigate to the Status or System Information page to view the firmware version. Alternatively, if you have telnet or SSH access, check the system info via CLI.
    Affected if The firmware version is lower than 1.09b03 (for example, 1.08 or earlier).
  2. Verify wireless radio is enabled
    Log into the router web interface and check the Wireless Settings page to confirm the Wi-Fi radio is turned on.
    Affected if Wireless is enabled - the SetWLanRadioSettings function processes Channel parameters for active radios.
  3. Assess network exposure of the HNAP1 SOAP interface
    Check if the router's web interface (port 80/443) is accessible from untrusted networks. The vulnerability is exploitable via the HNAP1 SOAP endpoint at /HNAP1/.
    Affected if The router management interface is reachable from the internet or untrusted LAN segments without firewall restrictions.
  4. Look for signs of exploitation attempts
    Review router logs or network traffic logs for requests to /HNAP1/ containing unusual data in the Channel parameter field, especially commands with shell metacharacters.
    Affected if Any logged POST requests to SetWLanRadioSettings with unexpected characters in the Channel field are detected.

The device is affected if the firmware version is below 1.09b03 and the HNAP1 SOAP interface is network-accessible.

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
Upgrade available Upgrade to 1.09b03 or later
Fixed in 1.09b03
Interim mitigation

Apply the vendor-supplied firmware patch when available. Until then, restrict network access to the device and monitor for exploitation attempts.

Recommended fix Moderate confidence

D-Link DAP-1325 firmware version 1.09b03 or later

  1. 1. Identify the current firmware version of the D-Link DAP-1325 router by accessing the web management interface and checking the status or firmware version page.
  2. 2. Download the latest firmware version (1.09b03 or later) from the official D-Link support website.
  3. 3. Access the router's administration panel and navigate to the firmware upgrade section (typically under Administration > Firmware Upgrade or Settings > Maintenance).
  4. 4. Upload the downloaded firmware file and initiate the upgrade process.
  5. 5. Wait for the firmware to upload and install - do not power off the router during this process.
  6. 6. After the router reboots, verify the new firmware version is installed correctly.
  7. 7. Consider factory resetting the router after firmware upgrade to ensure clean configuration.
Caveat firmware upgrades may reset configuration to defaults; backup settings before upgrading and reapply after upgrade

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

Fix this in Dap 1325 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
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Scan for this in your stack

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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-2023-44403 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data