# CVE-2026-120280: WAVLINK WN536AX6-A WireGuard protocol.csp wireguard_cli_group handler os command injection

Status: published. Published: 2026-11-02. Updated: 2026-11-02.

A vulnerability has been found in WAVLINK WN536AX6-A V260507. The impacted element is the function wireguard_cli_group handler of the file /protocol.csp of the component WireGuard. The manipulation of the argument group_id/group_name leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- WAVLINK / WN536AX6-A: V260507 (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 10 (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:P; source: CNA: VulDB

- CVSS 3.1: 10 (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:R; source: CNA: VulDB

- CVSS 3.0: 10 (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:R; source: CNA: VulDB

- CVSS 2.0: 10 (critical); AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR; source: CNA: VulDB

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-78, CWE-77

## Exploit evidence

- exploit: https://github.com/pipiyyb/cve/blob/main/WAVLINK%20WN536AX6-A/WN536AX6-A_group_id.md (CNA: VulDB)

## References

- https://vuldb.com/vuln/429624 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/429624/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-120280 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/919789 (CNA: VulDB; third-party-advisory)

- https://github.com/pipiyyb/cve/blob/main/WAVLINK%20WN536AX6-A/WN536AX6-A_group_id.md (CNA: VulDB; exploit)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-120280; retrieved 2026-11-02; source updated 2026-11-02

Revision: dda5bf2851159cd34c5861c4778f93a60400c0ff1d59c953f991598497a9ef10

Canonical: https://y2.dev/cve/CVE-2026-120280