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Medium 6.9Published Jan 27, 2026

CVE-2025-12387Denial of Service in Pix-Link LV-WR21Q

Updated under an hour ago ()

Does this affect you?

It affects Pix-Link LV-WR21Q and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness (CWE)
CWE-754
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
CERT-PL
NVD analysis
Deferred
Record last updated
Jan 27, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Pix-Link LV-WR21Q
pix_link:lv_wr21q (from the name)
V108_108
CNA record
Pix-Link WR21Q
pix_link:wr21q (from the name)
V108_108
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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