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CVE-2025-50086VulnerabilityPublished

CVE-2025-50086: Oracle MySQL Server · Easily exploitable vulnerability allows high privileged attacker with network access via multiple

Affects Oracle MySQL ServerSource CVE Database V5

0

Not known to be exploited · CVSS 4.9 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
4.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Mavencom.mysql/mysql-serverpkg:maven/com.mysql/mysql-serverOther threatsAffected
  • =8.0.0
  • =8.4.0
  • =9.0.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

1. Restrict network access to MySQL Server instances to trusted hosts and networks only, using firewalls and network segmentation to minimize exposure. 2. Enforce the principle of least privilege rigorously, ensuring that only necessary users have high privileges on MySQL servers. 3. Monitor and audit privileged user activities to detect anomalous behavior that could indicate exploitation attempts. 4. Implement robust authentication and access controls, including multi-factor authentication for administrative accounts. 5. Regularly update and patch MySQL Server as soon as Oracle releases a fix for this vulnerability; monitor Oracle security advisories closely. 6. Employ failover and redundancy mechanisms for MySQL services to minimize downtime in case of crashes. 7. Use intrusion detection and prevention systems (IDS/IPS) to identify and block suspicious network traffic targeting MySQL protocols. 8. Conduct penetration testing and vulnerability assessments focusing on MySQL Server configurations and access controls to identify and remediate weaknesses proactively.

Description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Components Services). Supported versions that are affected are 8.0.0-8.0.42, 8.4.0-8.4.5 and 9.0.0-9.3.0. Easily exploitable 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 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

References

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