Which products and versions are affected by CVE-2016-11021?

Affected: Dcs-930l Firmware (Dlink). The full list is in the CVE brief.

Is CVE-2016-11021 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Nov 11, 2021.

Is CVE-2016-11021 in the CISA KEV catalog?

Yes. It was added on Mar 25, 2022 with a federal remediation due date of Apr 15, 2022.

Is there a public exploit for CVE-2016-11021?

Public exploit code is available.

Is there a fix for CVE-2016-11021?

Fixed versions are available, including Dcs-930l Firmware 2.12.

How urgently should CVE-2016-11021 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2016-11021

HighExploitedPublic exploit

setSystemCommand on D-Link DCS-930L devices before 2.12 allows a remote attacker to execute code via an OS command in the SystemCommand parameter.

Published Mar 8, 2020 · Updated Nov 5, 2025

Key Facts

Patch immediately

CVE-2016-11021 is a high-severity vulnerability (CVSS 7.2 v3.1) affecting Dcs-930l Firmware (Dlink).
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Nov 11, 2021. Public exploit code is available.
EPSS estimates a 69% probability of exploitation in the next 30 days.
Fixed versions are available, including Dcs-930l Firmware 2.12.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

7.2

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

69%

Higher than 99.3% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2016-11021 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

setSystemCommand on D-Link DCS-930L devices before 2.12 allows a remote attacker to execute code via an OS command in the SystemCommand parameter.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Mar 25, 2022	Apr 15, 2022	Not reported
Industry KEV feed	Nov 11, 2021	Apr 15, 2022	Not reported
CIRCL KEV	Mar 25, 2022	Apr 15, 2022	Not reported
ENISA EUVD	Mar 25, 2022	n/a	Not reported

Required action: The impacted product is end-of-life and should be disconnected if still in use.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Dcs-930l FirmwareDlink	See advisory	2.12

Patched Releases

Dcs-930l Firmware

2.12

Timeline

Publicly disclosed
Mar 8, 2020
Added to Industry KEV feed
Nov 11, 2021
Added to CISA KEV
Mar 25, 2022
Added to CIRCL KEV
Mar 25, 2022
Added to ENISA EUVD
Mar 25, 2022
Last updated
Nov 5, 2025

Weakness Type

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

References

8 more references in the full CVE brief

FAQ

Common Questions.

setSystemCommand on D-Link DCS-930L devices before 2.12 allows a remote attacker to execute code via an OS command in the SystemCommand parameter.
Affected: Dcs-930l Firmware (Dlink). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Nov 11, 2021.
Yes. It was added on Mar 25, 2022 with a federal remediation due date of Apr 15, 2022.
Public exploit code is available.
Fixed versions are available, including Dcs-930l Firmware 2.12.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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