CVE-2026-1544
Published: 28 January 2026
Summary
CVE-2026-1544 is a medium-severity Command Injection (CWE-77) vulnerability in Dlink Dir-823X Firmware. Its CVSS base score is 6.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 9.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
OS command injection in public-facing router web interface (/goform/set_mode) directly enables remote exploitation of the device (T1190) and arbitrary command execution (T1059).
NVD Description
A security flaw has been discovered in D-Link DIR-823X 250416. Impacted is the function sub_41E2A0 of the file /goform/set_mode. Performing a manipulation of the argument lan_gateway results in os command injection. The attack is possible to be carried out remotely.…
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The exploit has been released to the public and may be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.
Deeper analysisAI
CVE-2026-1544 is an OS command injection vulnerability (CWE-77, CWE-78) in the D-Link DIR-823X router running firmware version 250416. The flaw affects the sub_41E2A0 function in the /goform/set_mode file, where manipulation of the lan_gateway argument enables arbitrary OS command execution. Published on 2026-01-28, it carries a CVSS 3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).
The vulnerability is exploitable remotely by attackers possessing low privileges, requiring no user interaction. Successful exploitation grants limited access to execute OS commands, potentially compromising confidentiality, integrity, and availability to a low degree. A public exploit has been released, increasing the risk of attacks against vulnerable devices.
This issue impacts only products no longer supported by the maintainer, with no patches available. Advisories from VulDB detail the vulnerability and submission, a GitHub issue provides further analysis, and the D-Link website is referenced, though no specific mitigation steps are outlined beyond device replacement or network isolation.
Details
- CWE(s)