CVE-2026-52483 MitraStar CVE debrief

Who should care

Defenders responsible for MitraStar GPT-2741GNAC-N2-SV routers with firmware BR_g8.10_1.11(WVK.0)b46, security teams, and network administrators should assess exposure and prioritize patching or restricting access to the vulnerable endpoint.

Why it matters

CVE-2026-52483 is a high-severity vulnerability in the MitraStar GPT-2741GNAC-N2-SV router with firmware BR_g8.10_1.11(WVK.0)b46, allowing authenticated users to execute arbitrary OS commands. Defenders should prioritize verifying and patching affected routers, restricting access to the vulnerable endpoint, and monitoring for suspicious activity.

• Authenticated attackers can execute arbitrary OS commands, potentially leading to unauthorized access or data breaches.
• Successful exploitation requires authentication, but the vulnerability's CVSS score of 8.8 indicates high severity.
• Defenders should verify and patch affected routers to prevent potential attacks.
• The vulnerability's impact on confidentiality, integrity, and availability is high, according to the CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Technical summary

The MitraStar GPT-2741GNAC-N2-SV router with firmware BR_g8.10_1.11(WVK.0)b46 is vulnerable to authenticated OS command injection via concatenated params on a crafted POST request to /cgi-bin/device-management-utilities-internet.cgi. The vulnerability has a CVSS score of 8.8 and vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Defenders should prioritize verifying and patching affected routers, restricting access to the vulnerable endpoint, and monitoring for suspicious activity to prevent potential attacks. The CVE record and NVD entry provide details on the vulnerability, including its CVSS score and vector. Affected product deployments should be identified, and owners assigned for follow-up.

Defensive priority

Defenders should prioritize verifying and patching affected MitraStar GPT-2741GNAC-N2-SV routers with firmware BR_g8.10_1.11(WVK.0)b46, restricting access to the /cgi-bin/device-management-utilities-internet.cgi endpoint, and monitoring for suspicious POST requests.

Recommended defensive actions

• Verify and patch affected MitraStar GPT-2741GNAC-N2-SV routers with firmware BR_g8.10_1.11(WVK.0)b46
• Restrict access to the /cgi-bin/device-management-utilities-internet.cgi endpoint
• Monitor for suspicious POST requests to the endpoint
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its CVSS score of 8.8 and vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. A GitHub repository containing the vendor and product model in its path provides attribution evidence.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.