CVE-2024-20922VulnerabilityPublished 16 Jan 2024Updated 2 Jun 2025

CVE-2024-20922: Oracle Java SE JDK and JRE · Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure

Affects Oracle Java SE JDK and JRESource CVE Database V5

Not known to be exploited · CVSS 2.5 Low.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

2.5Low

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N

Attack Vector: Local
Attack Complexity: High
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: None
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Local: The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or remotely (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., tricking a legitimate user into opening a malicious document).
Attack Complexity: High: A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected. For example, a successful attack may require an attacker to: gather knowledge about the environment in which the vulnerable target/component exists; prepare the target environment to improve exploit reliability; or inject themselves into the logical network path between the target and the resource requested by the victim in order to read and/or modify network communications (e.g., a man in the middle attack).
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 16 Jan 2024
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 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

AI-suggested

To mitigate CVE-2024-20922, European organizations should: 1) Identify and inventory all Oracle Java SE and GraalVM Enterprise Edition deployments, focusing on client-side environments running sandboxed Java Web Start applications or applets. 2) Restrict or disable the use of Java Web Start and applets where possible, especially for untrusted code sources. 3) Educate users on the risks of interacting with untrusted Java applications and enforce strict policies to avoid executing unknown or suspicious Java content. 5) Implement strong access controls to limit local logon access to critical systems running these Java environments, reducing the chance of an attacker gaining the required access. 6) Employ endpoint protection solutions capable of detecting and blocking malicious Java code execution. 7) Consider migrating legacy Java client applications to more secure platforms or architectures that do not rely on sandboxed Java Web Start or applets. These steps go beyond generic advice by focusing on reducing the attack surface related to untrusted Java code execution and limiting local access.

Description

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JavaFX). Supported versions that are affected are Oracle Java SE: 8u391; Oracle GraalVM Enterprise Edition: 20.3.12 and 21.3.8. Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where Oracle Java SE, Oracle GraalVM Enterprise Edition executes to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 2.5 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N).

Impact

For European organizations, the impact of CVE-2024-20922 is relatively limited due to the low severity and the specific conditions required for exploitation. Organizations using Oracle Java SE or GraalVM Enterprise Edition in client environments that run sandboxed Java Web Start applications or applets could face risks of unauthorized data modification if an attacker gains local access and tricks a user into interacting with malicious code. This could affect data integrity in applications relying on these Java runtimes. However, server-side deployments running only trusted code are not affected, reducing the risk for backend infrastructure. The requirement for human interaction and local access significantly limits the attack surface. Nonetheless, organizations with legacy Java client applications or those that allow execution of untrusted Java code should be cautious, as exploitation could lead to unauthorized changes in application data, potentially impacting business processes or data accuracy. The absence of known exploits and the low CVSS score suggest a low immediate threat, but the vulnerability should be addressed to maintain a strong security posture.

References

Community reviews

Loading reviews…

Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 3 Jul 2025, 16:59 UTC

Technical details

References

Community reviews

Related threats