Is CVE-2026-113736 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-113736 being exploited in the wild.

How severe is CVE-2026-113736?

Critical severity, with a CVSS score of 9.8, published 21 October 2026.

Which products and versions are affected?

D-Link DHP-W610AV 1.02EUb03 and earlier.

Is there a fix for CVE-2026-113736?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-113736 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-113736?

Check whether you run D-Link DHP-W610AV at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-113736: D-Link DHP-W610AV empty password in HNAP login

CVE-2026-113736 · Severity: critical · CVSS 9.8 · Published 2026-10-21

The D-Link DHP-W610AV is a PowerLine AV2 and Wi-Fi network bridge used to extend home networks. The device ships with a built-in "Admin" account that accepts an empty password when device configuration is missing or invalid, allowing an attacker on the network to log in remotely without credentials and gain administrative control. An attacker can then reconfigure the device, intercept network traffic, or use it as a pivot point to attack other network devices.

Vendors: D-Link.

Quick answers

Is CVE-2026-113736 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-113736 being exploited in the wild.
How severe is CVE-2026-113736?: Critical severity, with a CVSS score of 9.8, published 21 October 2026.
Which products and versions are affected?: D-Link DHP-W610AV 1.02EUb03 and earlier.
Is there a fix for CVE-2026-113736?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-113736 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-113736?: Check whether you run D-Link DHP-W610AV at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability stems from a logic error in the default initialization script (etc/defnodes/defaultvalue.php) which sets the administrative password to empty if the device-data password is missing, equals the sentinel "00000000", or is shorter than 8 bytes. The HNAP challenge-response login handler accepts this empty password, allowing unauthenticated network access. The attack requires only network adjacency to the management interface; no authentication bypass is needed since the empty credential is legitimately checked by the vendor's CGI handler.

Affected products

D-Link DHP-W610AV 1.02EUb03 and earlier

Timeline

2026-10-21: disclosed
other: Exploit proof-of-concept publicly available on GitHub

References

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