CVE-2025-30722
📋 TL;DR
A vulnerability in Oracle MySQL's mysqldump client allows low-privileged attackers with network access to potentially access or modify sensitive data. The vulnerability affects MySQL Client versions 8.0.0-8.0.41, 8.4.0-8.4.4, and 9.0.0-9.2.0. Successful exploitation requires network access and is difficult to achieve.
💻 Affected Systems
- Oracle MySQL Client
- MySQL mysqldump utility
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete unauthorized access to all MySQL Client accessible data including sensitive information, plus unauthorized modification of some data.
Likely Case
Limited data exposure or modification due to the difficulty of exploitation and requirement for low-privileged network access.
If Mitigated
Minimal impact with proper network segmentation, least privilege access controls, and monitoring in place.
🎯 Exploit Status
Requires low-privileged attacker with network access via multiple protocols; difficult to exploit according to CVSS.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 8.0.41, 8.4.4, and 9.2.0
Vendor Advisory: https://www.oracle.com/security-alerts/cpuapr2025.html
Restart Required: No
Instructions:
1. Download latest MySQL Client version from Oracle website. 2. Install update according to platform-specific instructions. 3. Verify mysqldump version with 'mysqldump --version'.
🔧 Temporary Workarounds
Restrict network access
allLimit network access to mysqldump client to trusted hosts only.
Use firewall rules to restrict access to MySQL port (default 3306) from authorized IPs only.
Implement least privilege
allEnsure mysqldump runs with minimal necessary database privileges.
GRANT SELECT, LOCK TABLES ON database.* TO 'mysqldump_user'@'host';
🧯 If You Can't Patch
- Restrict mysqldump usage to trusted administrators only.
- Monitor for unusual mysqldump activity from unexpected sources.
🔍 How to Verify
Check if Vulnerable:
Run 'mysqldump --version' and check if version falls within affected ranges.Check Version:
mysqldump --versionVerify Fix Applied:
Confirm mysqldump version is above affected ranges: 8.0.42+, 8.4.5+, or 9.2.1+.📡 Detection & Monitoring
Log Indicators:
- Unusual mysqldump connections from unexpected IP addresses
- Multiple failed mysqldump authentication attempts
Network Indicators:
- Unexpected network traffic to MySQL port 3306 from unauthorized sources
- Unusual data export patterns via mysqldump
SIEM Query:
source="mysql.log" AND (event="mysqldump" OR command="dump") AND src_ip NOT IN (trusted_ips)