Skip to content
EXYS
Back to the CVEs

CVE-2026-109109

10, critical

Wavlink WL-WN530BE1-A Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
10, critical critical CVSS v3.1
EPSS, next 30 days
0.6% higher than 46.7% of scored CVEs
Exploitation
No public evidence
Published
13 Oct 20264 days ago

Description

A vulnerability was detected in Wavlink WL-WN530BE1-A 251117. This vulnerability affects the function strcpy of the file /cgi-bin/ExportAllSettings.cgi of the component Settings Export CGI. Performing a manipulation of the argument HTTP_COOKIE/X-Cmd results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure.

Details

Vendor
Wavlink
Product
WL-WN530BE1-A
Weakness
CWE-119 (opens in a new tab)
Status
Deferred
Updated
13 Oct 2026
Assigner
cna@vuldb.com

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References 5

Other references 5

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Wavlink CVEs

Every Wavlink CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-110957 Wavlink WL-WN530BE2-A Command Injection Vulnerability EPSS 3% 10, critical
  • CVE-2026-109108 Wavlink WL-WN530BE1-A Command Injection Vulnerability EPSS 2% 9.9, critical
  • CVE-2026-109110 Wavlink WL-WN592AX6 Command Injection Vulnerability EPSS 2% 10, critical

Beyond this page

Is CVE-2026-109109 in your network?

This page tells you how dangerous CVE-2026-109109 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-109109 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.