# CVE-2026-107359: Malformed Wi-Fi Beacon Causes Crash on WF200

Status: published. Published: 2026-11-05. Updated: 2026-11-05.

Improper input validation in the beacon handler for WF200 firmware versions 3.17.0 and earlier may result in a divide-by-zero fault.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Silicon Labs / WF200 FW: ≥ 0; ≤ 3.17.0 (affected, semver). Source: CNA: Silabs

## Severity and prioritization

- CVSS 4.0: 7.1 (high); CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N; source: CNA: Silabs

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-369

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/SiliconLabsSoftware/docs-security-advisories/blob/main/Advisories/500-599/A-00000593.md (CNA: Silabs; vendor-advisory)

## Provenance

- CNA: Silabs: https://www.cve.org/CVERecord?id=CVE-2026-107359; retrieved 2026-11-05; source updated 2026-11-05

Revision: 64dc09d39c86e971d7064edd8e6b77a17586abb7ac2ea54755fbbdb3ce8531c1

Canonical: https://y2.dev/cve/CVE-2026-107359

## 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.