CVE-2026-109109

CRITICAL 10.0

Wavlink WL-WN530BE1-A Settings Export CGI ExportAllSettings.cgi strcpy stack-based overflow

CVSS Score

10.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-121 CWE-119
Vendor	wavlink
Product	wl-wn530be1-a
Published	Oct 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Wavlink / WL-WN530BE1-A

251117

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/416860 vuldb.com: https://vuldb.com/vuln/416860/cti vuldb.com: https://vuldb.com/cve/CVE-2026-109109 vuldb.com: https://vuldb.com/submit/909191 gist.github.com: https://gist.github.com/Rauzk/9ef4fe7574e5689386cc43139f4cf9e1

Credits

🔍 Tarbely (VulDB User) VulDB CNA Team