CVE-2026-2081
Published: 07 February 2026
Summary
CVE-2026-2081 is a medium-severity Command Injection (CWE-77) vulnerability in Dlink Dir-823X Firmware. Its CVSS base score is 4.7 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 47.1% of CVEs by exploit likelihood; 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 web interface directly enables T1190 exploitation for RCE; resulting arbitrary Unix shell commands map to T1059.004.
NVD Description
A vulnerability was determined in D-Link DIR-823X 250416. The affected element is an unknown function of the file /goform/set_password. This manipulation of the argument http_passwd causes os command injection. The attack is possible to be carried out remotely. The exploit…
more
has been publicly disclosed and may be utilized.
Deeper analysisAI
CVE-2026-2081 is an OS command injection vulnerability (CWE-77, CWE-78) affecting the D-Link DIR-823X router on firmware version 250416. The flaw exists in an unknown function of the web interface file /goform/set_password, where manipulation of the http_passwd argument enables arbitrary command execution.
The vulnerability carries a CVSS v3.1 base score of 4.7 (AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L), indicating network-accessible exploitation with low complexity but requiring high privileges, such as those of an authenticated administrator. Remote attackers meeting these prerequisites can achieve limited impacts on confidentiality, integrity, and availability through injected OS commands, without needing user interaction.
Advisories referenced in GitHub issues at master-abc/cve (issues/22 and #3847400767) and VulDB entries (ctiid.344648, id.344648, submit.745553) confirm the remote exploitability, with the proof-of-concept publicly disclosed and available for use. No specific patches or mitigation steps are detailed in the provided descriptions.
Details
- CWE(s)