CVE-2026-2227 - Vulnerability Details

- D-Link DCS-931L setSystemAdmin doSystem command injection

Description

A vulnerability was found in D-Link DCS-931L up to 1.13.0. Impacted is the function doSystem of the file /setSystemAdmin. Performing a manipulation of the argument AdminID results in command injection. The attack may be initiated remotely. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.

Published: 2026-02-09

Score: 5.1 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

A vulnerability exists in D‑Link DCS‑931L firmware up to version 1.13.0, where an attacker can manipulate the AdminID parameter of the /setSystemAdmin endpoint, triggering arbitrary operating‑system command execution. The flaw is a classic command injection (CWE‑74, CWE‑77). Exploitation can give the attacker control over the device, including full firmware‑level privileges.

Affected Systems

The affected product is the D‑Link DCS‑931L network video recorder, running firmware 1.13.0 or earlier. Firmware is no longer supported, so no official fix is available from the vendor.

Risk and Exploitability

The exploit can be launched remotely without authentication. Although the CVSS score is 5.1, indicating moderate severity, the lack of a public patch and the public availability of proof‑of‑concept code increase the risk of real‑world attacks. The EPSS score is below 1 % and the vulnerability is not in CISA KEV, but the low defense is the lack of vendor assistance, making mitigation the primary defense.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

D-Link

DCS-931L

affected

Version	Status	Constraints
`1.0`	affected	—
`1.1`	affected	—
`1.2`	affected	—
`1.3`	affected	—
`1.4`	affected	—
`1.5`	affected	—
`1.6`	affected	—
`1.7`	affected	—
`1.8`	affected	—
`1.9`	affected	—
`1.10`	affected	—
`1.11`	affected	—
`1.12`	affected	—
`1.13.0`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:dlink:dcs-931l_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:dlink:dcs-931l:-:*:*:*:*:*:*:*

No data.

Vendor Product Confidence Versions

D-link

Dcs-931l

—

Version	Status	Scheme	Platform
`1.0`	affected	generic	—
`1.1`	affected	generic	—
`1.2`	affected	generic	—
`1.3`	affected	generic	—
`1.4`	affected	generic	—
`1.5`	affected	generic	—
`1.6`	affected	generic	—
`1.7`	affected	generic	—
`1.8`	affected	generic	—
`1.9`	affected	generic	—
`1.10`	affected	generic	—
`1.11`	affected	generic	—
`1.12`	affected	generic	—
`1.13.0`	affected	semver	—

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Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Disable remote management or configure the device to allow /setSystemAdmin only from trusted networks, using ACLs or VLAN segmentation.
Block outbound traffic from the device to prevent it from being used as a foothold for further attacks, and monitor logs for suspicious command execution attempts.
If possible, migrate to a supported router or replace the device with a vendor that still provides updates to mitigate long‑term risk.

Generated by OpenCVE AI on April 18, 2026 at 13:05 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Multiple

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00075.

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/cha0yang1/CVE/blob/main/D-Link%20DCS931L1.md
https://vuldb.com/?ctiid.344944
https://vuldb.com/?id.344944
https://vuldb.com/?submit.753450
https://vuldb.com/?submit.753980
https://www.dlink.com/

History

Mon, 23 Feb 2026 10:30:00 +0000

Type	Values Removed	Values Added
References		https://vuldb.com/?submit.753980

Tue, 10 Feb 2026 14:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Dlink Dlink dcs-931l Dlink dcs-931l Firmware
CPEs		cpe:2.3:h:dlink:dcs-931l:-:::::::* cpe:2.3:o:dlink:dcs-931l_firmware::::::::
Vendors & Products		Dlink Dlink dcs-931l Dlink dcs-931l Firmware

Tue, 10 Feb 2026 12:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		D-link D-link dcs-931l
Vendors & Products		D-link D-link dcs-931l

Mon, 09 Feb 2026 14:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 09 Feb 2026 10:15:00 +0000

Type	Values Removed	Values Added
Description		A vulnerability was found in D-Link DCS-931L up to 1.13.0. Impacted is the function doSystem of the file /setSystemAdmin. Performing a manipulation of the argument AdminID results in command injection. The attack may be initiated remotely. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.
Title		D-Link DCS-931L setSystemAdmin doSystem command injection
Weaknesses		CWE-74 CWE-77
References		https://github.com/cha0yang1/CVE/blob/main/D-Link%20DCS931L1.md https://vuldb.com/?ctiid.344944 https://vuldb.com/?id.344944 https://vuldb.com/?submit.753450 https://www.dlink.com/
Metrics		cvssV2_0 `{'score': 5.8, 'vector': 'AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}` cvssV3_0 `{'score': 4.7, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV3_1 `{'score': 4.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV4_0 `{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}`

Subscriptions

D-link Dcs-931l

Dlink Dcs-931l Dcs-931l Firmware

MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-02-09T10:02:09.332Z

Updated: 2026-02-23T09:59:48.888Z

Reserved: 2026-02-08T16:12:11.558Z

Link: CVE-2026-2227

Vulnrichment

Updated: 2026-02-09T13:52:01.299Z

NVD

Status : Modified

Published: 2026-02-09T10:15:57.880

Modified: 2026-02-23T11:16:25.757

Link: CVE-2026-2227

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-04-18T13:15:25Z

Weaknesses

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Multiple

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

Exploitation poc

Automatable no

Technical Impact partial

Subscriptions

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