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Critical DoS Vulnerability in MySQL 8.4.10 Affects Fedora Users

Critical DoS Vulnerability in MySQL 8.4.10 Affects Fedora Users

First seen 3 Jul 2026, 09:25 UTC • •
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ThreatCluster AI
ThreatCluster •July 4, 2026 at 08:57 UTC
  • •CVE-2026-46863 is a critical DoS vulnerability in MySQL 8.4.10.
  • •The flaw is remotely exploitable without authentication, affecting Fedora users.
  • •Users should upgrade to MySQL 8.4.10 to mitigate the risk.

A critical denial-of-service (DoS) vulnerability, CVE-2026-46863, has been identified in MySQL version 8.4.10, affecting Fedora users. This vulnerability allows remote exploitation without authentication, potentially disrupting services. The flaw was disclosed as part of Oracle's Critical Security Patch Update in June 2026. It is the only CVE impacting the 'mysql8.4' package, while other vulnerabilities affect different components of MySQL. Users are advised to upgrade to the latest version to mitigate risks. The vulnerability has a CVSS score of 7.5, indicating a high severity. The update can be installed using the 'dnf' package manager. Administrators are urged to act promptly to secure their systems.

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Timeline

2026-06-16
CVE-2026-46863 published
Oracle disclosed a critical DoS vulnerability in MySQL 8.4.10 affecting Fedora systems.
Linuxsecurity
2026-06-23
MySQL 8.4.10 released
Fedora released MySQL 8.4.10, which includes a fix for CVE-2026-46863.
Linuxsecurity
Recent
Users urged to upgrade
Administrators are advised to upgrade to MySQL 8.4.10 to address the critical vulnerability.
Linuxsecurity

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