# CVE-2026-46862: Oracle MySQL Router denial of service in Router General component

Source: https://junglewise.ai/threats/cve-2026-46862-oracle-mysql-router-denial-of-service-in-router-general-component  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-17. Updated: 2026-06-17  
License: CC BY 4.0 with a link back

CVE-2026-46862 · Severity: high · CVSS 7.5 · Published 2026-06-17

A vulnerability in Oracle MySQL Router can allow an unauthenticated attacker to remotely disable the service. MySQL Router is a middleware component used to manage traffic between applications and database clusters. If exploited, this could lead to a complete denial of service, preventing applications from connecting to their databases and disrupting business operations.

Technologies: [Oracle MySQL Router](https://junglewise.ai/threats/technologies/mysql-router). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-46862 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-46862 being exploited in the wild.

**How severe is CVE-2026-46862?** High severity, with a CVSS score of 7.5, published 17 June 2026.

**Which products and versions are affected?** Oracle MySQL Router 8.4.0 - 8.4.9, 9.0.0 - 9.7.0.

**Is there a fix for CVE-2026-46862?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-46862 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-46862?** Check whether you run Oracle MySQL Router at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A vulnerability in the 'Router: General' component of Oracle MySQL Router (versions 8.4.x and 9.x) allows for uncontrolled resource consumption (CWE-400). An unauthenticated attacker with network access via TLS can exploit this flaw to cause a frequently repeatable crash or a permanent hang of the service. The attack is considered easily exploitable and does not require user interaction or elevated privileges. Successful exploitation results in a complete loss of availability for the MySQL Router instance. Users are advised to refer to the Oracle Critical Patch Update for June 2026 for remediation steps.

## Affected products

- Oracle MySQL Router 8.4.0 - 8.4.9, 9.0.0 - 9.7.0

## Timeline

- 2026-06-17: disclosed
- 2026-06-17: advisory

## References

- [https://www.oracle.com/security-alerts/cspujun2026.html](https://www.oracle.com/security-alerts/cspujun2026.html)

## Related threats

- [Oracle MySQL Router denial of service via network protocols](https://junglewise.ai/threats/cve-2026-101810-vulnerability-in-the-mysql-router-product-of-oracle-mysql)
- [Oracle MySQL Router data access vulnerability](https://junglewise.ai/threats/cve-2026-101783-vulnerability-in-the-mysql-router-product-of-oracle-mysql)
- [Oracle MySQL Router information disclosure vulnerability](https://junglewise.ai/threats/cve-2026-101633-vulnerability-in-the-mysql-router-product-of-oracle-mysql)
- [Oracle MySQL Router information disclosure via HTTPS](https://junglewise.ai/threats/cve-2026-101632-vulnerability-in-the-mysql-router-product-of-oracle-mysql)
- [Oracle MySQL Router authentication bypass in HTTPS endpoint](https://junglewise.ai/threats/cve-2026-101631-vulnerability-in-the-mysql-router-product-of-oracle-mysql)