CVE-2026-11339: A vulnerability was detected in D-Link DWR-M920 up to 1.1.50

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MEDIUM 6.3MITIGATE

CVE-2026-11339 is a medium-severity flaw (CVSS 6.3) affecting dwr-m920 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	3.1% (top 12%)
CISA exploited list	No
Weakness	CWE-74, CWE-77
Published	2026-06-05
Last modified	2026-10-26

Publisher (CNA): VulDB · Vendor: dlink

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-05 17:16 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

dlink dwr-m920 firmware MITIGATE

Affected: 1.1.50

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.50

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-11339?

dwr-m920 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-11339 being exploited?

CVE-2026-11339 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-11339 affect?

CVE-2026-11339 affects dwr-m920 firmware. Severity is medium (CVSS 6.3). 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 laun

How urgent is CVE-2026-11339?

Priority 49/100. Public exploit reference

Software pages

D-Link vulnerabilities

References

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