CVE-2025-12387

Denial of Service in Pix-Link LV-WR21Q

MEDIUM
6.9
CVSS Score
Published: January 27, 2026 at 11:57 AM UTC
Updated: June 17, 2026 at 08:32 AM UTC
1 product affected across 1 vendorLV-WR21Q

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.7%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Third Party Advisory
Source: cverecord
https://cert.pl/en/posts/2026/01/CVE-2025-12386
Product
Source: cverecord
https://www.pix-link.com/lv-wr21q

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMCERT-PL
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-754

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