Skip to main content
VulnerabilityPublished Updated

CVE-2025-30721: Oracle MySQL Server · Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure

Affects Oracle MySQL ServerSource CVE Database V5

0

Not known to be exploited · CVSS 4.0 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
4.0Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 13% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Apr 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Mavencom.oracle/mysql-serverpkg:maven/com.oracle/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 and monitor high-privilege access to MySQL infrastructure to minimize the risk of insider threats or compromised accounts.
  2. Implement strict access controls and multi-factor authentication for administrative accounts to reduce unauthorized logons.
  3. Educate users and administrators about social engineering risks to prevent the required human interaction exploitation vector.
  4. Monitor MySQL server logs and system behavior for signs of unusual activity or repeated crashes that may indicate exploitation attempts.
  5. Isolate critical MySQL servers within segmented network zones to limit exposure.
  6. Apply vendor patches promptly once they become available to remediate the vulnerability.
  7. Regularly audit User Defined Functions and restrict their creation to trusted users only.
  8. Employ failover and high availability configurations to mitigate potential downtime caused by DoS conditions.
  9. Conduct periodic security assessments and penetration tests focusing on privilege escalation and insider threat scenarios related to MySQL environments.

Description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: UDF). Supported versions that are affected are 8.0.0-8.0.41, 8.4.0-8.4.4 and 9.0.0-9.2.0. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes to compromise MySQL Server. Successful attacks require human interaction from a person other than the attacker. 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 4.0 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H).

References

Community reviews

Loading reviews…