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Dap 1325 FirmwareOperating system · Dlink

CVE-2023-41208

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 SetHostIPv6StaticSettings StaticDefaultGateway 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-18834.

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 when the SetHostIPv6StaticSettings function processes XML data via the HNAP1 SOAP endpoint. The vulnerability stems from insufficient length validation before copying user-supplied data into a fixed-size stack buffer, enabling unauthenticated remote attackers to execute arbitrary code with root privileges.

MitigationApply available firmware updates from D-Link; if unavailable, disable remote management, restrict network access, or replace the affected device.

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
    Access the router web interface or check the device label to verify the model is D-Link DAP-1325
    Affected if Device is not a D-Link DAP-1325 (not affected)
  2. Check firmware version
    Log into the router web interface and navigate to Status or Management section to view the firmware version; alternatively, check the release notes or firmware file metadata
    Affected if Firmware version is lower than 1.09b03 (vulnerable)
  3. Verify HNAP1 SOAP endpoint accessibility
    Attempt to access the HNAP1 SOAP endpoint at http://<router-ip>/HNAP1 or check if port 80/443 responds to HNAP1 SOAP requests
    Affected if HNAP1 endpoint is exposed and responds (vulnerable component is reachable)
  4. Check remote management exposure
    Verify whether remote management/admin access is enabled by reviewing the router's administration settings and checking if the web interface is accessible from WAN/outside the local network
    Affected if Remote management is enabled and the router is internet-facing (exposes the vulnerable attack surface)

If the device is a D-Link DAP-1325 running firmware below version 1.09b03 and the HNAP1 SOAP endpoint is accessible (especially from remote networks), the environment is affected by this vulnerability.

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, disable remote management, restrict network access, or replace the affected device.

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.
  2. 2. Navigate to the D-Link support page at supportannouncement.us.dlink.com to obtain the latest firmware version.
  3. 3. Download firmware version 1.09b03 or later from the official D-Link support site.
  4. 4. Access the router's administration panel and locate the firmware upgrade section (typically under Management > Firmware Upgrade or Settings > System).
  5. 5. Upload the downloaded firmware file and initiate the upgrade process.
  6. 6. Wait for the upgrade to complete and the device to reboot automatically.
  7. 7. Verify the new firmware version is installed by checking the device status page.
Caveat Firmware upgrades on embedded devices may reset configuration to defaults; backup current 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
  • Testing3.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,690
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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-2023-41208 in production — separate from our analysis above.

No notes yet

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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