CVE-2025-30736Network attack vector

Unauthenticated critical data access and modification

Published Apr 15, 2025 · Updated Feb 26, 2026

An unspecified flaw in Oracle Database Java VM 19.3 through 19.26, 21.3 through 21.17, and 23.4 through 23.7 allows remote attackers to alter data. Oracle has not disclosed the affected Java VM code locus, the malformed input, or the incorrect operation performed on that input. Exploitation requires no credentials but has high complexity and network access through multiple protocols; success permits reading or modifying critical data or all Java VM-accessible data, without a reported availability impact.

CVSS severity7.4
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An unspecified flaw in Oracle Database Java VM 19.3 through 19.26, 21.3 through 21.17, and 23.4 through 23.7 allows remote attackers to alter data. Oracle has not disclosed the affected Java VM code locus, the malformed input, or the incorrect operation performed on that input. Exploitation requires no credentials but has high complexity and network access through multiple protocols; success permits reading or modifying critical data or all Java VM-accessible data, without a reported availability impact.

The record

CVE
CVE-2025-30736
Published
Apr 15, 2025
Updated
Feb 26, 2026
Vendor
Oracle Corporation
Product
Oracle Database
Classifications
T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=19.3 <=19.26
  2. Affected versionversion=21.3 <=21.17
  3. Affected versionversion=23.4 <=23.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle Databaseversion=19.3 <=19.26; version=21.3 <=21.17; version=23.4 <=23.7

Published CVSS scores

7.4Oracle CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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