Security readout for executives and security teams
Plain-English summary
CVE-2026-1125 affects D-Link DIR-823X firmware 250416. A remote attacker may abuse a Wi-Fi dog settings parameter to run operating-system commands on the router. Public proof-of-concept material is referenced, but the provided sources do not show confirmed active exploitation or a vendor fix.
Executive priority
High priority for environments using this router model. The issue can permit remote command execution on network infrastructure, and public exploit material increases operational risk. Confirm exposure quickly and apply vendor guidance when available.
Technical view
VulDB describes command injection in /goform/set_wifidog_settings, function sub_412E7C, via manipulation of the wd_enable argument. The CVSS v2 score is 7.5 with network access, low complexity, and no authentication. CWE mappings are CWE-74 and CWE-77. Affected product evidence is limited to D-Link DIR-823X version 250416.
Likely exposure
Organizations are exposed if they operate D-Link DIR-823X routers on firmware 250416, especially where the relevant web interface is reachable from untrusted networks. The sources do not establish whether other firmware versions or related models are affected.
Exploitation context
The source bundle states remote exploitation is possible and that exploit material is public. CISA KEV status is false, and no cited source confirms attacks in the wild. Treat this as credible proof-of-concept risk, not confirmed active exploitation.
Researcher notes
Evidence is primarily from CVE/VulDB records and linked public research. Do not assume impact beyond DIR-823X firmware 250416 without additional vendor confirmation. No official patch is identified in the provided sources.
Mitigation direction
- Identify all D-Link DIR-823X devices and firmware versions.
- Prioritize review of devices running firmware 250416.
- Check D-Link support channels for updated firmware or official mitigation guidance.
- Restrict router management access to trusted administrative networks.
- Avoid exposing management interfaces to the public internet.
- Monitor for unexpected configuration changes or suspicious administrative activity.
Validation and detection
- Inventory network assets for D-Link DIR-823X routers.
- Confirm whether firmware version 250416 is installed.
- Review perimeter exposure for router web administration interfaces.
- Check logs for unusual access to Wi-Fi dog settings pages.
- Track CVE, VulDB, and D-Link advisories for patch updates.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-74: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-77: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-1125 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (2.0)
- Known Exploited
- No
- Published
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR106.4Primary CVE scoreVulnerability scoring details
Base CVSS 2.0 score
7.5HighVector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Source materials
- CVE List V5 sourceCVE List V5
- VDB-341717 | D-Link DIR-823X set_wifidog_settings sub_412E7C command injectionCVE reference · vdb-entry, technical-description
- VDB-341717 | CTI Indicators (IOB, IOC, TTP, IOA)CVE reference · signature, permissions-required
- Submit #734966 | D-Link DIR-823X Router V250416 Command ExecutionCVE reference · third-party-advisory
- Submit #743503 | D-Link DIR-823X 250416 OS Command Injection (Duplicate)CVE reference · third-party-advisory
- https://github.com/DavCloudz/cve/blob/main/D-link/DIR_823X/DIR-823X%20V250416%20Command%20Execution%20Vulnerability.mdCVE reference · exploit
- https://www.dlink.com/CVE reference · product
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Neutralization of Special Elements used in a Command ('Command Injection')
Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.