What is CVE-2025-50103?

CVE-2025-50103 is a medium-severity vulnerability in Oracle MySQL, classified under Uncontrolled Resource Consumption. CVSS score: 4.4/10. Published 2025-07-15.

How severe is CVE-2025-50103?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Resource exhaustion in Oracle MySQL

CVE-2025-50103

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth). Supported versions that are affected are 9.0.0-9.3.0. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).

Vulnerability class: DoS (Denial of Service)

Published 2025-07-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (32.8th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Oracle MySQL
Oracle Corporation MySQL Server — versions 9.0.0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

www.oracle.com/security-alerts/cpujul2025.html (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2025-50103?: CVE-2025-50103 is a medium-severity vulnerability in Oracle MySQL, classified under Uncontrolled Resource Consumption. CVSS score: 4.4/10. Published 2025-07-15.
How severe is CVE-2025-50103?: Medium severity. CVSS v3 base score is 4.4 out of 10.