dbcve.org
Di 7100g C1 FirmwareOperating system · Dlink

CVE-2025-11335

HIGH · 7.2 CVSS v3.1 Published 2025-10-06
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
78/100
Remediation priority · High
Remotely reachable 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
A weakness has been identified in D-Link DI-7100G C1 up to 20250928. Affected by this vulnerability is the function sub_46409C of the file /msp_info.htm?flag=qos of the component jhttpd. This manipulation of the argument iface causes command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be exploited.

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

Command injection vulnerability in D-Link DI-7100G C1 routers allows remote attackers to execute arbitrary OS commands via the 'iface' parameter in the /msp_info.htm?flag=qos endpoint. The flaw exists in the jhttpd web server component's sub_46409C function, which insufficiently sanitizes user input before passing it to system shell commands.

MitigationD-Link DI-7100G C1 is end-of-life with no official patches; restrict administrative interface access to trusted networks only or replace with a supported device. If continued use is required, implement network segmentation and firewall rules to limit exposure to the vulnerable management interface.

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
Di 7100g C1 FirmwareOperating system
Affected:= 2025-09-28

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
Network
Complexity
Low
Privileges
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/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 router's web administration interface or check the device label/marketing to confirm the exact model is D-Link DI-7100G C1
    Affected if The device is not a D-Link DI-7100G C1 model
  2. Check the installed firmware version
    Log into the router's web interface and navigate to the System Status or Firmware Upgrade page to view the current firmware version; compare it to version 2025-09-28
    Affected if The firmware version matches or predates 2025-09-28
  3. Confirm the jhttpd web server is running
    Access the router's web interface by navigating to the IP address of the device on the local network; attempt to load any page served by the embedded web server
    Affected if The web interface responds and the jhttpd server is active
  4. Verify the vulnerable endpoint is reachable
    Attempt to access the URL pattern /msp_info.htm?flag=qos on the router's web interface; check if the page loads or responds
    Affected if The /msp_info.htm?flag=qos endpoint is accessible and returns a response
  5. Assess network exposure of the management interface
    Determine if the router's web administration interface (port 80/443) is exposed to untrusted networks or the internet by checking router firewall rules, port forwarding configurations, or external connectivity
    Affected if The management interface is accessible from untrusted or external networks

A user is affected if they have a D-Link DI-7100G C1 router with firmware version 2025-09-28 or earlier, the jhttpd web server is active, and the management interface is accessible either locally or externally.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

D-Link DI-7100G C1 is end-of-life with no official patches; restrict administrative interface access to trusted networks only or replace with a supported device. If continued use is required, implement network segmentation and firewall rules to limit exposure to the vulnerable management interface.

Fix this in Di 7100g C1 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,750
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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-2025-11335 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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