CVE-2026-2155
D-Link DIR-823X Configuration set_dmz sub_4208A0 os command injection
- State
- Published
- Severity
- 8.6 High
- Published
- Feb 8, 2026
- Updated
- Feb 23, 2026
- Reserved
- Feb 7, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.6 High | CVSS: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 | VulDB |
| 3.1 | 7.2 High | 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 | VulDB |
| 3.0 | 7.2 High | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 8.3 High | AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
DIR-823XD-Link |
|
References
- VDB-344857 | D-Link DIR-823X Configuration set_dmz sub_4208A0 os command injectionvdb-entrytechnical-description
- VDB-344857 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #748236 | D-Link DIR-823X 250416 OS Command Injectionthird-party-advisory
- Submit #750038 | D-Link DIR-823X 250416 OS Command Injection (Duplicate)third-party-advisory
- https://github.com/master-abc/cve/issues/32exploitissue-tracking
- https://www.dlink.com/product
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