Is CVE-2026-10878 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-10878 being exploited in the wild.

How severe is CVE-2026-10878?

Medium severity, with a CVSS score of 6.3, published 5 June 2026.

Which products and versions are affected?

D-Link DWR-M920 1.1.50, 1.1.70.

Is there a fix for CVE-2026-10878?

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-2026-10878 attacked?

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

Am I affected by CVE-2026-10878?

Check whether you run D-Link DWR-M920 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-2026-10878: D-Link DWR-M920 command injection in formSmsManage

CVE-2026-10878 · Severity: medium · CVSS 6.3 · Published 2026-06-05

A security vulnerability exists in the D-Link DWR-M920 4G LTE router, a device used to provide internet connectivity for homes and small offices. An attacker can exploit this flaw to take control of the device by injecting malicious commands through the SMS management interface. This could lead to unauthorized access to the network, interception of data, or disruption of internet services.

Technologies: D-Link DWR-M920. Vendors: D-Link.

Quick answers

Is CVE-2026-10878 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-10878 being exploited in the wild.
How severe is CVE-2026-10878?: Medium severity, with a CVSS score of 6.3, published 5 June 2026.
Which products and versions are affected?: D-Link DWR-M920 1.1.50, 1.1.70.
Is there a fix for CVE-2026-10878?: 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-2026-10878 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-10878?: Check whether you run D-Link DWR-M920 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

A command injection and stack-based buffer overflow vulnerability exists in the D-Link DWR-M920 router versions 1.1.50 and 1.1.70. The flaw is located in the sub_41C8E8 function within the /boafrm/formSmsManage component. The application fails to perform length checks or sanitization on the 'action_value' parameter before passing it to the 'sprintf' function (causing a buffer overflow) and subsequently to the 'system' function. A remote attacker with low privileges can exploit this to execute arbitrary shell commands on the underlying operating system. Public exploit code is reportedly available.

Affected products

D-Link DWR-M920 1.1.50, 1.1.70

Timeline

2026-06-05: advisory: NVD publication date
2026-06-04: disclosed: Initial disclosure by VulDB

References

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