CVE-2025-13562
Published: 23 November 2025
Summary
CVE-2025-13562 is a medium-severity Injection (CWE-74) vulnerability in Dlink Dir-852 Firmware. Its CVSS base score is 5.5 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 35.7th percentile by exploit likelihood (below the median); 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 SA-22 (Unsupported System Components) and SI-10 (Information Input Validation).
Deeper analysis
CVE-2025-13562 is a command injection vulnerability affecting the D-Link DIR-852 router on firmware version 1.00. The flaw occurs in the processing of the /gena.cgi file, where manipulation of the "service" argument enables arbitrary command injection. It is classified under CWE-74 and CWE-77, with a CVSS v3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).
Remote, unauthenticated attackers can exploit this vulnerability over the network with low complexity and no user interaction required. Successful exploitation allows limited impacts on confidentiality, integrity, and availability, such as executing injected commands on the device.
The vulnerability affects products no longer supported by the maintainer, so no patches are available. Advisories on VulDB detail the issue and submission history, while a public exploit is available on GitHub, increasing the risk of active use. The D-Link website offers general product information but no specific mitigation guidance.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-198579
Vulnerability details
A vulnerability was identified in D-Link DIR-852 1.00. This issue affects some unknown processing of the file /gena.cgi. Such manipulation of the argument service leads to command injection. The attack can be executed remotely. The exploit is publicly available and…
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might be used. This vulnerability only affects products that are no longer supported by the maintainer.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Command injection in public-facing /gena.cgi enables remote unauthenticated exploitation (T1190: Exploit Public-Facing Application) leading to arbitrary command execution (T1202: Indirect Command Execution, as cited in advisory).
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Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly validates and sanitizes the 'service' argument in /gena.cgi processing to block command injection exploits.
Mandates timely identification, reporting, and remediation of flaws like the command injection vulnerability, including compensatory mitigations since no patches are available.
Prohibits use of unsupported system components such as the end-of-life D-Link DIR-852 firmware v1.00, preventing exposure to unpatchable command injection.