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 should assess exposure and prioritize patching or restricting access to the vulnerable endpoint.

Why it matters

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

• Verify patch availability and apply it if available
• Restrict access to the vulnerable endpoint
• Monitor for suspicious POST requests

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 execution 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. This CVE was published on 2026-09-17T21:17:14.870Z and was last modified on 2026-09-19T03:17:14.207Z.

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. The CWE-78 weakness is also noted. Evidence is limited to public CVE and NVD information. Defenders should verify patch availability and apply it if available, restrict access to the vulnerable endpoint, and monitor for suspicious POST requests to the endpoint. Additional verification is recommended due to limited source detail.

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.