CVEsWavlinkCVE-2026-109109Published Oct 13, 07:45 · Updated Oct 14, 13:39 UTC
10.0
CriticalCVSS 3.1 · from VulDB
CVE-2026-109109

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

WL-WN530BE1-A · Stack buffer overflow · CWE-121
AffectedWL-WN530BE1-A
FixNo fix listed yet.
PublishedOct 13, 07:45 · VulDB
ScoredOct 13 · 10.0 · VulDB
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:11 UTC

What we know

No known exploitation. CISA KEV, checked 22:11 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.
A successful attack can read and change data and take the service down. CVSS: high impact on confidentiality, integrity and availability.
A successful attack gives full control of the affected system. CISA: technical impact total.

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.

From VulDB

Affected and fixed versions

ProductAffectedFixed inWL-WN530BE1-A251117–

Exploit code

Exploit-DBnone knownMetasploitnone knownNucleinone known

References

VDB-416860 | Wavlink WL-WN530BE1-A Settings Export CGI ExportAllSettings.cgi strcpy stack-based overflow · vuldb.comvdb entrytechnical descriptionVDB-416860 | CTI Indicators (IOB, IOC, IOA) · vuldb.comsignaturepermissions requiredCVE-2026-109109 | CVE Analysis and Report · vuldb.comthird party advisorySubmit #909191 | Wavlink WL-WN530BE1-A M30BE1_V251117 Stack-based Buffer Overflow · vuldb.comthird party advisorygist.github.com/Rauzk/9ef4fe7574e5689386cc43139f4cf9e1 · gist.github.combroken linkexploit

Other CVEs in WL-WN530BE1-A

All 3 →
10.0WAVLINK WL-WN530BE1-A protocol.csp con_check_read_finish command injection · CVE-2026-120198Nov 19.8Wavlink WL-WN530BE1-A Unauthenticated OS Command Injection in ioos protocol.csp ovpn_file Handler · CVE-2026-113802Oct 209.9Wavlink WL-WN530BE1-A uploadVpn.cgi popen os command injection · CVE-2026-109108Oct 13