CVE-2026-2155

HIGH 7.2

D-Link DIR-823X Configuration set_dmz sub_4208A0 os command injection

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

A security flaw has been discovered in D-Link DIR-823X 250416. The affected element is the function sub_4208A0 of the file /goform/set_dmz of the component Configuration Handler. The manipulation of the argument dmz_host/dmz_enable results in os command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

CWE	CWE-78 CWE-77
Vendor	d-link
Product	dir-823x
Published	Feb 8, 2026
Last Updated	Feb 23, 2026

Stay Ahead of the Next One

Get instant alerts for d-link dir-823x

Be the first to know when new high vulnerabilities affecting d-link dir-823x are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

D-Link / DIR-823X

250416

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.344857 vuldb.com: https://vuldb.com/?ctiid.344857 vuldb.com: https://vuldb.com/?submit.748236 vuldb.com: https://vuldb.com/?submit.750038 github.com: https://github.com/master-abc/cve/issues/32 dlink.com: https://www.dlink.com/

Credits

🔍 942384053 (VulDB User)