High severity · published Feb 8, 2026
CVE-2026-2155
A security flaw has been discovered in D-Link DIR-823X 250416
7.2
CVSS
4.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.6% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
Dir-823x Firmware · Dlink
250416 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2155
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2155
Exploit
https://github.com/master-abc/cve/issues/32
Permissions Required
https://vuldb.com/?ctiid.344857
Third Party Advisory
https://vuldb.com/?id.344857
Third Party Advisory
https://vuldb.com/?submit.748236
Third Party Advisory
https://vuldb.com/?submit.750038
Product
https://www.dlink.com/
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