CVE-2020-2735Network attack vector

Authenticated Java VM takeover via undisclosed flaw

Published Apr 15, 2020 · Updated Sep 30, 2024

Java VM takeover in Oracle Database 11.2.0.4, 12.1.0.2, 12.2.0.1, 18c, and 19c allows remote authenticated users to compromise the VM. Oracle has not published the operation in the Java VM that mishandles attacker-controlled input. Exploitation requires Create Session privilege, Oracle Net access, high-complexity conditions, and interaction by another person; success controls the Java VM and can affect dependent products.

CVSS severity8.0
High
EPSS probability1.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Java VM takeover in Oracle Database 11.2.0.4, 12.1.0.2, 12.2.0.1, 18c, and 19c allows remote authenticated users to compromise the VM. Oracle has not published the operation in the Java VM that mishandles attacker-controlled input. Exploitation requires Create Session privilege, Oracle Net access, high-complexity conditions, and interaction by another person; success controls the Java VM and can affect dependent products.

The record

CVE
CVE-2020-2735
Published
Apr 15, 2020
Updated
Sep 30, 2024
Vendor
Oracle Corporation
Product
Oracle Database
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 30, 2024Record 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=11.2.0.4
  2. Affected versionversion=12.1.0.2
  3. Affected versionversion=12.2.0.1
  4. Affected versionversion=18c
  5. Affected versionversion=19c

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle Corporation · Oracle Databaseversion=11.2.0.4; version=12.1.0.2; version=12.2.0.1; version=18c; version=19c

Published CVSS scores

8.0NIST NVDCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
8.0Oracle CorporationCVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
4.6NIST NVDAV:N/AC:H/Au:S/C:P/I:P/A:P

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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