6.3Medium

Dlink Dir-806a Firmware

CVE-2025-15391

A weakness has been identified in D-Link DIR-806A 100CNb11. Affected is the function ssdpcgi_main of the component SSDP Request Handler. This manipulation causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited. This vulnerability only affects products that are no longer supported by the maintainer.

What this means for your business

  • It affects Dlink Dir-806a Firmware. It matters if your company, or a supplier that handles your data, runs it.
  • Code showing how to exploit it has been published, but real attacks have not been confirmed.
  • An attacker can use it remotely, over a network, with an ordinary user login, and without anyone at your company clicking anything.
  • FIRST's prediction model gives it a 4% chance of attack attempts being seen in the next 30 days, ranking above 90% of all known flaws.

What to do

  1. 1Check whether your company or your suppliers run Dlink Dir-806a Firmware, and which version. The affected versions are listed further down this page.
  2. 2If you do, follow the vendor's guidance. No patch reference has been published yet.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Scoring

CVSS
6.3 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4
2.1
Weakness
CWE-74
Assigned by
cna@vuldb.com

Dates

Published
2025-12-31
Last modified
2026-09-23
Sources
NVD

Affected products

  • Dlink Dir-806a Firmware100cnb11
  • Dlink Dir-806aall versions

As listed in the NVD configuration data. Not a statement about your estate.

References