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High USN-8457-2 2 CVEs

mysql-8.0 vulnerabilities

Published Jun 24, 2026 · Updated Jun 24, 2026

Summary

USN-8457-1 fixed several vulnerabilities in MySQL. This update
provides the corresponding fixes for MySQL on Ubuntu 20.04 LTS

Original advisory details:

It was discovered that MySQL Router incorrectly handled repeated TLS
protocol upgrade requests. An unauthenticated remote attacker could
possibly use this issue to cause MySQL Router to crash, resulting in a
denial of service. (CVE-2026-46862)

It was discovered that MySQL Server incorrectly handled connection
authentication. An unauthenticated remote attacker could possibly use this
issue to cause MySQL to crash, resulting in a denial of service.
(CVE-2026-46863)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · Pro 20.04 LTS Pro:20.04:LTS mysql-8.0 8.0.46-0ubuntu0.20.04.1+esm3

Vulnerabilities 2

References

  • report
    https://ubuntu.com/security/CVE-2026-46862
  • report
    https://ubuntu.com/security/CVE-2026-46863