Public vulnerability disclosure
CVE-2026-120278
WAVLINK WN536AX6-A VPN Client List ioos sub_41a7c0 missing authentication
publishedCWE-306CWE-287
A vulnerability was detected in WAVLINK WN536AX6-A V260507_2.0.0. Impacted is the function sub_416d48/sub_41a7c0 of the file /bin/ioos of the component VPN Client List Handler. Performing a manipulation of the argument opt results in missing authentication. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure.
Technical severity6.9 mediumCVSS 4.0 · CNA: VulDB
Published2026-11-01Source updated 2026-11-01
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
| Product | Versions | Authority |
|---|---|---|
| WN536AX6-A WAVLINK |
V260507_2.0.0 (affected) | CNA: VulDB |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 6.9 medium |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P | CNA: VulDB |
| 3.1 / 5.3 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R | CNA: VulDB |
| 3.0 / 5.3 medium |
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R | CNA: VulDB |
| 2.0 / 5.0 medium |
AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR | CNA: VulDB |
Exploit evidence
References
- https://vuldb.com/vuln/429622CNA: VulDB · vdb-entry, technical-description
- https://vuldb.com/vuln/429622/ctiCNA: VulDB · signature, permissions-required
- https://vuldb.com/cve/CVE-2026-120278CNA: VulDB · third-party-advisory
- https://vuldb.com/submit/919506CNA: VulDB · third-party-advisory
- https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK_WN536AX6-A%20Router/WAVLINK_WN536AX6-A_vpn_list_info_disclosure.mdCNA: VulDB · exploit