CVE-2025-9727
Published: 31 August 2025
Summary
CVE-2025-9727 is a medium-severity Command Injection (CWE-77) vulnerability in Dlink Dir-816L 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 45.8th 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 /soap.cgi endpoint directly enables remote exploitation of the network device for arbitrary command execution.
NVD Description
A weakness has been identified in D-Link DIR-816L 206b01. Affected by this issue is the function soapcgi_main of the file /soap.cgi. This manipulation of the argument service causes os command injection. Remote exploitation of the attack is possible. The exploit…
more
has been made available to the public and could be exploited. This vulnerability only affects products that are no longer supported by the maintainer.
Deeper analysisAI
CVE-2025-9727 is an OS command injection vulnerability (CWE-77, CWE-78) affecting the D-Link DIR-816L router on firmware version 206b01. The flaw exists in the soapcgi_main function of the /soap.cgi file, where manipulation of the 'service' argument enables injection of operating system commands. This issue was published on 2025-08-31 and carries a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L). It exclusively impacts products that are no longer supported by the maintainer.
Remote attackers with low privileges can exploit this vulnerability over the network without user interaction. By crafting a malicious request to the affected /soap.cgi endpoint, they can execute arbitrary OS commands, potentially leading to limited impacts on confidentiality, integrity, and availability, such as data leakage, modification, or service disruption on the device.
Advisories from VulDB (ctiid.322016, id.322016) and a GitHub repository (scanleale/IOT_sec/blob/main/DIR-816L.pdf) document the vulnerability details and confirm a proof-of-concept exploit is publicly available. No patches or mitigations are provided, as the D-Link DIR-816L is end-of-support, leaving affected devices exposed to potential exploitation.
Details
- CWE(s)