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NVD description
A vulnerability in the Pix-Link LV-WR21Q router's language module allows remote attackers to trigger a denial of service (DoS) by sending a specially crafted HTTP POST request containing non-existing language parameter. This renders the server unable to serve correct lang.js file, which causes administrator panel to not work, resulting in DoS until the language settings is reverted to a correct value. The Denial of Service affects only the administrator panel and does not affect other router functionalities. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version V108_108 was tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
CVE-2025-12387 Pix-Link LV-WR21Q Router Denial of Service via Malformed Language Parameter https://vulmon.com/vulnerabilitydetails?qid=CVE-2025-12387
Post summary
A brief notice announces a Denial of Service vulnerability in Pix‑Link LV‑WR21Q routers triggered by malformed language parameters, with no PoC, exploit details, or patch information provided.