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
Not known to be exploited · CVSS 4.0 Medium.
Data as of 26 Oct 2026, 10:12 UTC
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Apr 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
Mavencom.oracle/mysql-serverpkg:maven/com.oracle/mysql-serverOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
- Restrict and monitor high-privilege access to MySQL infrastructure to minimize the risk of insider threats or compromised accounts.
- Implement strict access controls and multi-factor authentication for administrative accounts to reduce unauthorized logons.
- Educate users and administrators about social engineering risks to prevent the required human interaction exploitation vector.
- Monitor MySQL server logs and system behavior for signs of unusual activity or repeated crashes that may indicate exploitation attempts.
- Isolate critical MySQL servers within segmented network zones to limit exposure.
- Apply vendor patches promptly once they become available to remediate the vulnerability.
- Regularly audit User Defined Functions and restrict their creation to trusted users only.
- Employ failover and high availability configurations to mitigate potential downtime caused by DoS conditions.
- 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).