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Dap 1325 FirmwareOperating system · Dlink

CVE-2023-41214

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 setDhcpAssignRangeUpdate lan_ipaddr 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-18841.

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 the HNAP1 SOAP endpoint's setDhcpAssignRangeUpdate function allows remote, unauthenticated network-adjacent attackers to overflow a fixed-length stack buffer via unsanitized XML data and execute arbitrary code with root privileges.

MitigationApply available firmware updates from D-Link; if unavailable, restrict network access to the LAN interface and disable HNAP services if possible.

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
    Access the device's web interface or CLI and confirm the model is D-Link DAP-1325
    Affected if The device is not a D-Link DAP-1325
  2. Check the installed firmware version
    Access the device's web interface (usually under Status or Management section) or use the CLI command 'cat /etc/version' or similar to retrieve the firmware version
    Affected if The firmware version is below 1.09b03
  3. Verify HNAP1 service accessibility
    Attempt to access the HNAP1 SOAP endpoint by sending an HTTP request to the device's IP on port 80 or 443 with a probe request to the /HNAP1/ path
    Affected if The HNAP1 endpoint responds to network requests (indicating it is enabled and reachable)
  4. Confirm network exposure
    Check if the device's management interface (HTTP/HTTPS ports) is exposed beyond the local LAN segment
    Affected if The device's web interface is accessible from outside the local network or from untrusted network segments

A user is affected if they have a D-Link DAP-1325 device running firmware version below 1.09b03 with the HNAP1 service exposed on the network.

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 available firmware updates from D-Link; if unavailable, restrict network access to the LAN interface and disable HNAP services if possible.

Recommended fix Moderate confidence

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

  1. 1. Visit the official D-Link support website (support.dlink.com) and navigate to the DAP-1325 product support page.
  2. 2. Locate and download the latest firmware version (1.09b03 or later) from the official D-Link support portal.
  3. 3. Access the DAP-1325 router web management interface.
  4. 4. Navigate to the Administration or System settings section.
  5. 5. Select the firmware upgrade option and upload the downloaded firmware file.
  6. 6. Wait for the upgrade process to complete - do not power off the device during this process.
  7. 7. After reboot, verify the firmware version has been updated successfully.
  8. 8. Confirm the vulnerability is remediated by checking the firmware version in the router interface.
Caveat Firmware upgrades on embedded devices can sometimes reset configuration to defaults; backup current settings before upgrading if possible

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
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,440
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,904.

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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-2023-41214 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