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Dap 1325 FirmwareOperating system · Dlink

CVE-2023-41212

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 SetTriggerAPValidate Key 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-18839.

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 routers in the SetTriggerAPValidate function within the HNAP1 SOAP endpoint. The vulnerability lacks proper length validation of XML data before copying to a fixed-length stack buffer, allowing network-adjacent attackers to execute arbitrary code as root without authentication.

MitigationApply vendor firmware updates when available; until then, restrict network access to the device's management interface and monitor for signs of exploitation.

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. Confirm device model is D-Link DAP-1325
    Log into the router web interface or check the device label/marketing to verify the exact model number
    Affected if The device is a D-Link DAP-1325 router
  2. Identify the installed firmware version
    Access the router administration panel, typically at 192.168.0.1, and navigate to the Status or Firmware Upgrade page to view the current firmware version
    Affected if The firmware version is lower than 1.09b03 (e.g., 1.08, 1.07, etc.)
  3. Verify HNAP1 SOAP service is accessible
    Attempt to access the HNAP1 endpoint by navigating to http://<device_ip>/HNAP1 or check if the SOAP service responds to HNAP1 requests on the local network
    Affected if The HNAP1 SOAP endpoint is reachable from the network where the check is performed
  4. Check network exposure of management interface
    Review router network settings to determine if the management web interface is accessible from the WAN or guest network segments rather than only from the local LAN
    Affected if The device management interface is exposed beyond the trusted local network

You are affected if you are using a D-Link DAP-1325 router with firmware version prior to 1.09b03 and the HNAP1 service 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 vendor firmware updates when available; until then, restrict network access to the device's management interface and monitor for signs of exploitation.

Recommended fix High 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 router's web management interface
  2. 2. Navigate to the firmware update or administration section of the router settings
  3. 3. Download the latest firmware version 1.09b03 or later from the official D-Link support website (supportannouncement.us.dlink.com)
  4. 4. Upload the firmware file through the router's web interface to apply the update
  5. 5. Wait for the device to reboot and complete the firmware installation
  6. 6. Verify the firmware version has been successfully updated by checking the router's status page

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

Fix this in Dap 1325 Firmware Scoped from the published advisory
  • Consultation3.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
17.0 hours of engineering $3,000
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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-2023-41212 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