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How CVE-2025-53032 Works
This vulnerability exists in the Optimizer component of MySQL Server (versions 9.0.0-9.1.0). A high-privileged attacker with network access can exploit it via multiple protocols. The flaw occurs due to improper handling of certain queries during optimization, leading to an infinite loop or resource exhaustion. When maliciously crafted queries are processed, the server enters a hung state or crashes repeatedly, causing a complete denial of service (DoS). The attack requires high privileges (PR:H) but no user interaction (UI:N), impacting availability (A:H) without compromising data (C:N, I:N).
DailyCVE Form
Platform: MySQL Server
Version: 9.0.0-9.1.0
Vulnerability: Optimizer DoS
Severity: Medium
Date: 07/24/2025
Prediction: Patch by 08/15/2025
What Undercode Say
-- Malicious query triggering the DoS EXPLAIN SELECT FROM tbl WHERE (SELECT 1 UNION SELECT 2) = 1;
Check MySQL crash logs grep -i "optimizer crash" /var/log/mysql/error.log
How Exploit
1. Attacker authenticates with high privileges.
2. Sends crafted query exploiting optimizer flaw.
3. Server hangs or crashes repeatedly.
Protection from this CVE
1. Apply Oracle’s patch.
2. Restrict admin privileges.
3. Monitor query patterns.
Impact
Service disruption due to DoS.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
