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How the CVE Works
CVE-2025-53023 is a vulnerability in MySQL Server’s replication component (versions 8.0.0-8.0.42). A high-privileged attacker with network access can exploit this flaw via multiple protocols to trigger a denial-of-service (DoS) condition. The issue stems from improper handling of replication packets, causing the server to hang or crash repeatedly. The CVSS 3.1 score of 4.9 reflects its impact on availability, requiring high privileges (PR:H) but no user interaction (UI:N). Attackers abuse malformed replication requests to disrupt service, affecting database stability.
DailyCVE Form
Platform: MySQL Server
Version: 8.0.0-8.0.42
Vulnerability: Replication DoS
Severity: High
Date: 07/24/2025
Prediction: Patch by 08/15/2025
What Undercode Say
Analytics:
SHOW REPLICA STATUS; -- Check for replication errors
mysqladmin ping Verify server responsiveness
How Exploit:
- Craft malicious replication packets.
- Send via authenticated session.
- Trigger server hang/crash.
Protection from this CVE:
- Restrict replication user privileges.
- Apply Oracle’s upcoming patch.
- Monitor replication traffic.
Impact:
- Database unavailability.
- Service disruption.
- Requires restart.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
