# CVE-2026-120197: WAVLINK WL-WN530HG4B wapi.cgi port_forward os command injection

Status: published. Published: 2026-11-01. Updated: 2026-11-02.

A flaw has been found in WAVLINK WL-WN530HG4B M_V260724. This impacts the function port_forward of the file /cgi-bin/wapi.cgi. This manipulation of the argument Name causes os command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- WAVLINK / WL-WN530HG4B: M_V260724 (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 9.4 (critical); 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; source: CNA: VulDB

- CVSS 3.1: 9.9 (critical); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R; source: CNA: VulDB

- CVSS 3.0: 9.9 (critical); CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R; source: CNA: VulDB

- CVSS 2.0: 9 (critical); AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR; source: CNA: VulDB

- CVSS 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; source: NVD: cna@vuldb.com

- CVSS 3.1: 9.9 (critical); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H; source: NVD: cna@vuldb.com

- CVSS 2.0: 9 (high); AV:N/AC:L/Au:S/C:C/I:C/A:C; source: NVD: cna@vuldb.com

- CISA KEV: No listing in collected sources

- EPSS: 1.69% as of 2026-11-02; percentile 77.03%

- SSVC: exploitation poc; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-78, CWE-77

## Exploit evidence

- exploit: https://github.com/pipiyyb/cve/blob/main/WL-WN530HG4B.md (CNA: VulDB)

## References

- https://vuldb.com/vuln/429560 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/429560/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-120197 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/917074 (CNA: VulDB; third-party-advisory)

- https://github.com/pipiyyb/cve/blob/main/WL-WN530HG4B.md (CNA: VulDB; exploit)

- https://github.com/pipiyyb/cve/blob/main/WL-WN530HG4B.md (cna@vuldb.com)

- https://vuldb.com/cve/CVE-2026-120197 (cna@vuldb.com)

- https://vuldb.com/submit/917074 (cna@vuldb.com)

- https://vuldb.com/vuln/429560 (cna@vuldb.com)

- https://vuldb.com/vuln/429560/cti (cna@vuldb.com)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-120197; retrieved 2026-11-02; source updated 2026-11-02

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-120197; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-120197; retrieved 2026-11-02; source updated Not reported

Revision: 96552e4a753c6d8a32bab59eb7b030ab0242dce4a580713692eecc5024b4cfa5

Canonical: https://y2.dev/cve/CVE-2026-120197

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.