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Dap 1325 FirmwareOperating system · Dlink

CVE-2023-44409

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 SetSetupWizardStatus Enabled Stack-based Buffer Overflow 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 XML data provided to the HNAP1 SOAP endpoint. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-18838.

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

Stack-based buffer overflow in D-Link DAP-1325 HNAP1 SOAP endpoint allows unauthenticated network-adjacent attackers to execute arbitrary code with root privileges due to missing length validation before copying user-supplied XML data to a fixed-size stack buffer.

MitigationReplace the end-of-life D-Link DAP-1325 with a supported router; if continued operation is mandatory, strictly limit network access to trusted devices only and implement monitoring 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. Identify the device model
    Physically inspect the device or check the administrative web interface for the model name. The vulnerability affects only the D-Link DAP-1325 access point.
    Affected if The device is a D-Link DAP-1325
  2. Check the installed firmware version
    Access the device web interface (typically at 192.168.0.1) and navigate to the Status or Administration section to view the firmware version. Alternatively, check the header of HTTP responses from the device.
    Affected if The firmware version is lower than 1.09b03 (e.g., 1.08, 1.07, etc.)
  3. Verify HNAP1 SOAP endpoint accessibility
    Send an HTTP POST request to the /HNAP1/ endpoint on the device. The vulnerability requires this SOAP service to be reachable. Use a tool like curl: curl -X POST http://<device-ip>/HNAP1/ -d '<soap-request>'
    Affected if The device responds to SOAP requests on the HNAP1 endpoint
  4. Confirm the vulnerability trigger condition
    The vulnerability is triggered when malformed XML data with unchecked length is sent to the SOAP endpoint. This requires network adjacency to the device.
    Affected if Untrusted network actors can send requests to the device's HNAP1 interface

The device is affected if it is a D-Link DAP-1325 running firmware version below 1.09b03 and the HNAP1 SOAP endpoint 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

Replace the end-of-life D-Link DAP-1325 with a supported router; if continued operation is mandatory, strictly limit network access to trusted devices only and implement monitoring 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 device by accessing the web management interface.
  2. 2. Navigate to the D-Link support page at support.dlink.com and search for the DAP-1325 product.
  3. 3. Download the latest firmware version (1.09b03 or later) from the official D-Link support site.
  4. 4. Access the router's web interface, go to the Management > Firmware Upgrade or Settings > System > Firmware Update section.
  5. 5. Upload the downloaded firmware file and wait for the upgrade process to complete.
  6. 6. After the device reboots, verify the firmware version has been updated to 1.09b03 or later.
  7. 7. Confirm the device is functioning normally and re-apply any custom configurations if necessary.
Caveat Firmware updates may reset device configuration to defaults; backup settings before upgrading

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

Fix this in Dap 1325 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
16.0 hours of engineering $2,840
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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-2023-44409 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