CVE-2026-109109 Details
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.
A stack-based buffer overflow vulnerability has been identified in the Wavlink WL-WN530BE1-A router, specifically in the version 251117. The issue arises in the Settings Export CGI component, within the ExportAllSettings.cgi file. The vulnerability is triggered by manipulating the HTTP_COOKIE or X-Cmd arguments, allowing for remote exploitation.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 13, 2026CISA-ADP
Assessed Oct 14, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gist.github.com/Rauzk/9ef4fe7574e5689386cc43139f4cf9e1 | [email protected] | Broken LinkExploit |
| https://vuldb.com/cve/CVE-2026-109109 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/909191 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/416860 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/416860/cti | [email protected] | AdvisoryPermission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Wavlink WL-WN530BE1-A | All versions |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 14, 2026 | CVE Modified | CISA-ADP |
| Oct 13, 2026 | New CVE Received | [email protected] |