CVE-2026-120281 WAVLINK WN536AX6-A - Buffer Overflow

WAVLINK WN536AX6-A V260507 contains a stack-based buffer overflow caused by improper handling of the openvpn_ip argument in OpenVPN Handler's /protocol.csp, letting remote attackers execute code, exploit requires crafted input.

CVSS base score 10.0 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
2 November 2026
Updated
3 November 2026
Weakness
CWE-119

Vendor fix

Update to the latest firmware version provided by WAVLINK.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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