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PatchSiren cyber security CVE debrief

CVE-2026-11339 D-Link CVE debrief

A command injection vulnerability was detected in D-Link DWR-M920 up to 1.1.50. The affected element is the function sub_41CF20 of the file /boafrm/formUSSDSetup. The manipulation of the argument ussdValue results in command injection. It is possible to launch the attack remotely. The exploit is now public and may be used.

Vendor
D-Link
Product
DWR-M920
CVSS
LOW 2.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-06-09
Advisory published
2026-06-05
Advisory updated
2026-06-09

Who should care

Administrators and users of D-Link DWR-M920 up to 1.1.50

Technical summary

The vulnerability has a CVSS score of 2.1 and a CVSS severity of LOW. The CVSS vector is CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

Defensive priority

LOW

Recommended defensive actions

  • Update to a version of D-Link DWR-M920 firmware that is not vulnerable
  • Limit access to the /boafrm/formUSSDSetup file

Evidence notes

The vulnerability was detected in D-Link DWR-M920 up to 1.1.50. The affected element is the function sub_41CF20 of the file /boafrm/formUSSDSetup.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11339 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11339

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11339 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11339

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.