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CVE-2026-2155

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

HIGH
7.2
CVSS Score
Published: February 8, 2026 at 02:02 PM UTC
Updated: June 17, 2026 at 10:30 AM UTC
2 products affected across 1 vendorDir 823X AX3000 FirmwareDIR-823X

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Severity
HIGH7.2
Exploit prediction
EPSS 5%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.344857
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.344857
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.748236
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.750038
ExploitIssue Tracking
Source: cverecord
https://github.com/master-abc/cve/issues/32
Product
Source: cverecord
https://www.dlink.com/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.2HIGHVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78CWE-77

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