Public vulnerability disclosure
CVE-2026-120239
CVE-2026-120239
publishedCWE-77
A vulnerability was found in WAVLINK WN553X1-B V260403_2.0.0. This vulnerability affects the function sub_419DA8 of the file /bin/ioos of the component WireGuard CLI Handler. Performing a manipulation of the argument file_id results in os command injection. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.
Technical severity8.6 highCVSS 4.0 · NVD: [email protected]
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
No affected-product ranges reported in collected sources.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.6 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD: [email protected] |
| 3.1 / 9.9 critical |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD: [email protected] |
| 2.0 / 9.0 high |
AV:N/AC:L/Au:S/C:C/I:C/A:C | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK%20WN553X1-B%20Router/WAVLINK_WN553X1-B_wireguard_cli_command_injection.md[email protected]
- https://vuldb.com/cve/CVE-2026-120239[email protected]
- https://vuldb.com/submit/919250[email protected]
- https://vuldb.com/vuln/429598[email protected]
- https://vuldb.com/vuln/429598/cti[email protected]