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CVE-2025-61881VulnerabilityPublished

CVE-2025-61881: Oracle Database Server · Difficult to exploit vulnerability allows unauthenticated attacker with network access via Oracle Net

Affects Oracle Database ServerSource CVE Database V5

0

Not known to be exploited · CVSS 5.9 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
5.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Oct 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.oracle.database/oracle-database-serverpkg:maven/com.oracle.database/oracle-database-serverOther threatsAffected
  • =19.3
  • =21.3
  • =23.4
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 Oracle Net services using firewalls and network segmentation to limit exposure only to trusted hosts and networks. 2. Monitor network traffic for unusual or unauthorized access attempts targeting Oracle Net ports. 3. Disable or restrict Java VM usage within Oracle Database Server if not required for business operations. 4. Implement strict access controls and auditing on Oracle Database environments to detect unauthorized changes promptly. 5. Apply Oracle security best practices, including the principle of least privilege for database users and services. 6. Stay informed on Oracle’s security advisories and apply patches immediately once they are released for this vulnerability. 7. Conduct regular vulnerability assessments and penetration testing focused on Oracle Database components and network exposure. 8. Use Oracle Database firewall or equivalent database activity monitoring tools to detect and block suspicious activities targeting the Java VM component.

Description

Vulnerability in the Java VM component of Oracle Database Server. Supported versions that are affected are 19.3-19.28, 21.3-21.19 and 23.4-23.9. Difficult to exploit vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise Java VM. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java VM accessible data. CVSS 3.1 Base Score 5.9 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N).

References

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