# CVE-2026-84730: CVE-2026-84730

Status: published. Published: 2026-11-04. Updated: 2026-11-05.

Stack-based buffer overflow in certain ASUS Router firmware allows an unauthenticated nearby attacker to execute arbitrary commands with root privileges via a crafted device name.
Refer to the '
Security Update for ASUS Router AiCloud Feature ' section on the ASUS Security Advisory for more information.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- ASUS / Router firmware: ASUSWRT 3.0.0.4_386 series (affected, custom); ASUSWRT 3.0.0.4_388 series (affected); ASUSWRT 3.0.0.6_102 series (affected). Source: CNA: ASUS

## Severity and prioritization

- CVSS 4.0: 8.7 (high); CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N; source: CNA: ASUS

- CVSS 4.0: 8.7 (high); CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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: 54bf65a7-a193-42d2-b1ba-8e150d3c35e1

- CISA KEV: No listing in collected sources

- EPSS: 0.34% as of 2026-11-04; percentile 27.99%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-121

## Exploit evidence

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

## References

- https://www.asus.com/security-advisory (CNA: ASUS)

- https://www.asus.com/security-advisory (54bf65a7-a193-42d2-b1ba-8e150d3c35e1)

## Provenance

- CNA: ASUS: https://www.cve.org/CVERecord?id=CVE-2026-84730; retrieved 2026-11-05; source updated 2026-11-05

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-84730; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-84730; retrieved 2026-11-04; source updated Not reported

Revision: 7a90f53c123c5cca4e42fabb0135ef4bebf19bac8402615462e1d1a2ee39100c

Canonical: https://y2.dev/cve/CVE-2026-84730

## 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.