CVE-2026-109108: Wavlink WL-WN530BE1-A uploadVpn.cgi popen os command injection

Severity: critical (CVSS 9.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-13 · updated 2026-10-16
Weakness: CWE-77

Description

A security vulnerability has been detected in Wavlink WL-WN530BE1-A 251117. This affects the function popen of the file /cgi-bin/uploadVpn.cgi. Such manipulation of the argument Type leads to os command injection. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure.

Affected products

Wavlink WL-WN530BE1-A: 251117

References

https://gist.github.com/Rauzk/0a61823f0033441142dc1c3f4a776e7c
https://vuldb.com/cve/CVE-2026-109108
https://vuldb.com/submit/909182
https://vuldb.com/vuln/416859
https://vuldb.com/vuln/416859/cti

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