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Description

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.

PUBLISHED Reserved 2026-02-07 | Published 2026-02-08 | Updated 2026-02-08 | Assigner VulDB




HIGH: 8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
HIGH: 7.2CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 7.2CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.3AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

OS Command Injection

Command Injection

Product status

250416
affected

Timeline

2026-02-07:Advisory disclosed
2026-02-07:VulDB entry created
2026-02-07:VulDB entry last update

Credits

942384053 (VulDB User) reporter

References

vuldb.com/?id.344857 (VDB-344857 | D-Link DIR-823X Configuration set_dmz sub_4208A0 os command injection) vdb-entry technical-description

vuldb.com/?ctiid.344857 (VDB-344857 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.748236 (Submit #748236 | D-Link DIR-823X 250416 OS Command Injection) third-party-advisory

vuldb.com/?submit.750038 (Submit #750038 | D-Link DIR-823X 250416 OS Command Injection (Duplicate)) third-party-advisory

github.com/master-abc/cve/issues/32 exploit issue-tracking

www.dlink.com/ product

cve.org (CVE-2026-2155)

nvd.nist.gov (CVE-2026-2155)

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