# CVE-2026-71948: D-Link DWR-M961 command injection in debug diagnostic handler

Source: https://junglewise.ai/threats/cve-2026-71948-d-link-dwr-m961-command-injection-in-debug-diagnostic-handler  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-08. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-71948 · Severity: critical · CVSS 9.8 · Published 2026-08-08

The D-Link DWR-M961 is a 4G LTE router used to provide mobile broadband connectivity to networks. A command injection vulnerability in the device's web management interface allows attackers to execute arbitrary system commands with root privileges, enabling complete device compromise and potential lateral attacks into connected networks.

Technologies: [D-Link DWR-M961](https://junglewise.ai/threats/technologies/dwr-m961). Vendors: [D-Link](https://junglewise.ai/threats/vendors/d-link).

## Quick answers

**Is CVE-2026-71948 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-71948 being exploited in the wild.

**How severe is CVE-2026-71948?** Critical severity, with a CVSS score of 9.8, published 8 August 2026.

**Which products and versions are affected?** D-Link DWR-M961 hardware revision C1 running firmware before 1.1.5_C1_202607071108.

**Is there a fix for CVE-2026-71948?** A patch was published on 2026-07-07: Fixed in firmware version 1.1.5_C1_202607071108 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-71948 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-71948?** Check whether you run D-Link DWR-M961 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

This is a command injection vulnerability (CWE-78) in the /boafrm/formDebugDiagnosticRun web management CGI endpoint. The vulnerability exists in the host input field of the debug diagnostic function, where user-supplied input is not properly sanitized before being passed to system command execution. An unauthenticated remote attacker on the network can send a crafted HTTP request with malicious commands embedded in the host parameter to achieve arbitrary command execution with root privileges. The vulnerability affects hardware revision C1 running firmware versions prior to 1.1.5_C1_202607071108, which contains the fix.

## Affected products

- D-Link DWR-M961 hardware revision C1 running firmware before 1.1.5_C1_202607071108

## Timeline

- 2026-08-08: disclosed: CVE-2026-71948 published
- 2026-07-07: patched: Fixed in firmware version 1.1.5_C1_202607071108

## References

- [https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10512](https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10512)
- [https://www.dlink.com/middle-east/en/products/dwr-m961-4g-ac1200-lte-router](https://www.dlink.com/middle-east/en/products/dwr-m961-4g-ac1200-lte-router)

## Related threats

- [D-Link DWR-M961 buffer overflow in quicksetup.cgi](https://junglewise.ai/threats/cve-2026-71958-d-link-dwr-m961-buffer-overflow-in-quicksetup-cgi)
- [D-Link DWR-M961 buffer overflow in app.cgi](https://junglewise.ai/threats/cve-2026-71957-d-link-dwr-m961-buffer-overflow-in-app-cgi)
- [D-Link DWR-M961 command injection in web-management CGI](https://junglewise.ai/threats/cve-2026-71956-d-link-dwr-m961-command-injection-in-web-management-cgi)
- [D-Link DWR-M961 command injection in formWsc](https://junglewise.ai/threats/cve-2026-71955-d-link-dwr-m961-command-injection-in-formwsc)
- [D-Link DWR-M961 command injection in L2TPv3 config](https://junglewise.ai/threats/cve-2026-71954-d-link-dwr-m961-command-injection-in-l2tpv3-config)