CVE-2026-2194
Published: 09 February 2026
Summary
CVE-2026-2194 is a medium-severity Injection (CWE-74) vulnerability in Dlink Di-7100G C1 Firmware. Its CVSS base score is 5.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 12.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2026-2194 is a command injection vulnerability (CWE-74, CWE-77) in the start_proxy_client_email function of D-Link DI-7100G C1 firmware version 24.04.18D1. It 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), indicating medium severity with network accessibility, low attack complexity, and low privilege requirements.
Remote attackers who possess low privileges can exploit this flaw by manipulating inputs to the affected function, enabling arbitrary command execution on the device. Successful exploitation could result in limited impacts to confidentiality, integrity, and availability, such as unauthorized data access, modification, or disruption of device services.
Advisories and details are documented on VulDB (vuldb.com/?ctiid.344897, vuldb.com/?id.344897, vuldb.com/?submit.749804) and a GitHub repository (github.com/glkfc/IoT-Vulnerability/blob/main/D-Link/Dlink_3.md) that includes the published exploit. The D-Link website (dlink.com) may provide further guidance or patches.
The exploit has been publicly disclosed and may be actively used in attacks against vulnerable devices.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-6452
Vulnerability details
A flaw has been found in D-Link DI-7100G C1 24.04.18D1. This affects the function start_proxy_client_email. Executing a manipulation can lead to command injection. The attack can be executed remotely. The exploit has been published and may be used.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Command injection in exposed router firmware directly enables remote exploitation of public-facing application (T1190) leading to Unix shell command execution (T1059.004).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly blocks the command injection by validating and sanitizing inputs to start_proxy_client_email before they reach the interpreter.
Requires timely patching or firmware updates to eliminate the published flaw in the DI-7100G C1 start_proxy_client_email function.
Disables or restricts the vulnerable proxy-email functionality when it is not required, reducing the attack surface exposed remotely.