CVE-2026-82690
Received Received - Intake

Command Injection in D-Link DNS-327L and DNS-340L

Publication date: 2026-08-31

Last updated on: 2026-08-31

Assigner: VulDB

Description
A flaw has been found in D-Link DNS-327L and DNS-340L up to 20260717. Affected by this vulnerability is an unknown functionality of the file /cgi-bin/ve_mgr.cgi. This manipulation of the argument f_dev causes os command injection. The attack is possible to be carried out remotely. The exploit has been published and may be used.

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Meta Information

Published
2026-08-31
Last Modified
2026-08-31
Generated
2026-08-31
AI Q&A
2026-08-31
EPSS Evaluated
N/A
NVD
CVE-2026-82690
EUVD
EUVD-2026-68483

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
d-link dns-327l to 20260717 (inc)
d-link dns-340l to 20260717 (inc)
d-link dns-327l to 20260717 (exc)
d-link dns-340l to 20260717 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Attack-Flow Graph

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Executive Summary

CVE-2026-82690 is an OS command injection flaw in D-Link DNS-327L and DNS-340L devices. The vulnerability exists in the /cgi-bin/ve_mgr.cgi file where the f_dev parameter is improperly handled, allowing attackers to inject malicious shell commands.

Detection Guidance

Check if your D-Link DNS-327L or DNS-340L devices are running affected firmware versions up to 20260717. Inspect network traffic for POST requests to /cgi-bin/ve_mgr.cgi with parameters cmd=cgi_VE_PWD_Check and f_dev. Look for unusual command execution patterns or unexpected system behavior.

Impact Analysis

This vulnerability allows authenticated attackers to execute arbitrary commands on the device with the privileges of the CGI process user. This could lead to unauthorized access to stored data, modification of device settings, or disruption of storage services.

Compliance Impact

This vulnerability allows remote command execution on affected D-Link devices, potentially enabling unauthorized access to stored data. For GDPR, this could lead to unauthorized processing or disclosure of personal data, violating principles of lawfulness and integrity. Under HIPAA, it may expose protected health information to unauthorized parties, compromising confidentiality requirements.

Mitigation Strategies

Apply the latest firmware update from D-Link if available. Disable remote access to the management interface if not required. Implement network segmentation to isolate vulnerable devices. Monitor for suspicious activity targeting /cgi-bin/ve_mgr.cgi endpoints.

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