CVE-2026-2155D-Link DIR-823X Configuration set_dmz sub_4208A0 os command injection
Updated under an hour ago ()
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It affects D-Link DIR-823X and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 7.2 HIGH (v3.1, CNA)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
- Weakness (CWE)
- CWE-78, CWE-77
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Analyzed
- Record last updated
- Feb 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
D-Link DIR-823X d_link:dir_823x (from the name) | 250416 | CNA record |
dlink dir-823x_firmware dlink:dir-823x_firmware | 250416 | NVD |
References
- https://vuldb.com/?id.344857vdb-entry, technical-description, third-party-advisory
- https://vuldb.com/?ctiid.344857signature, permissions-required, vdb-entry
- https://vuldb.com/?submit.748236third-party-advisory, vdb-entry
- https://vuldb.com/?submit.750038third-party-advisory, vdb-entry
- https://github.com/master-abc/cve/issues/32exploit, issue-tracking
- https://www.dlink.com/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.