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Public vulnerability disclosure

CVE-2026-120279

WAVLINK WN536AX6-A openvpn_cli protocol.csp os command injection

publishedCWE-78CWE-77

A flaw has been found in WAVLINK WN536AX6-A V260507. The affected element is an unknown function of the file /protocol.csp of the component openvpn_cli Handler. Executing a manipulation of the argument file_id can lead to os command injection. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.

Investigate in Cyber JSONMarkdown
Technical severity10.0 criticalCVSS 4.0 · CNA: VulDB
Published2026-11-02Source updated 2026-11-02
Collected2026-11-021 attributed source

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

ProductVersionsAuthority
WN536AX6-A
WAVLINK 		V260507 (affected) CNA: VulDB

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

Version / scoreVectorAuthority
4.0 / 10.0
critical		 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:PCNA: VulDB
3.1 / 10.0
critical		 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:RCNA: VulDB
3.0 / 10.0
critical		 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:RCNA: VulDB
2.0 / 10.0
critical		 AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:URCNA: VulDB

Exploit evidence

References