CVE-2018-2940: Oracle Corporation Java vulnerability

CVE-2018-2940: Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: Libraries).

Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: Libraries). Supported versions that are affected are Java SE: 6u191, 7u181, 8u172 and 10.0.1; Java SE Embedded: 8u171. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Java SE, Java SE Embedded 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 3.0 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N).

UnknownCVSS not scoredNot KEV-listedUpdatedOct 2, 2024, 20:16 UTC (UTC+00:00)

Security readout for executives and security teams

This is a Java sandbox data-exposure flaw. It matters mainly where users run untrusted Java Web Start applications or applets from the internet. A successful attack requires user interaction and can read some data accessible to Java, but sources do not show integrity, availability, or server-side trusted-code impact. Highest exposure is on client systems that still allow sandboxed Java Web Start applications or applets to load untrusted internet code. The CVE text says typical server deployments running only administrator-installed trusted code are not affected by this vulnerability. Treat this as a targeted remediation item for legacy Java client exposure, not a broad server emergency. Prioritize environments where users can launch untrusted Java content or where old Java runtimes remain unmanaged. Mitigation focus: Apply Oracle July 2018 CPU or relevant vendor Java updates.; Review Red Hat, NetApp, or HPE advisories if using their distributions or products.; Disable Java applets and Web Start where business use is not required..

Prepared: Jun 7, 2026, 13:02 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 18, 2018, 13:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

16Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
RHSA-2018:2254CVE reference · vendor-advisory, x_refsource_REDHAT
RHSA-2018:3007CVE reference · vendor-advisory, x_refsource_REDHAT
RHSA-2018:2713CVE reference · vendor-advisory, x_refsource_REDHAT
https://security.netapp.com/advisory/ntap-20180726-0001/CVE reference · x_refsource_CONFIRM
RHSA-2018:2255CVE reference · vendor-advisory, x_refsource_REDHAT
RHSA-2018:2575CVE reference · vendor-advisory, x_refsource_REDHAT
RHSA-2018:2256CVE reference · vendor-advisory, x_refsource_REDHAT
RHSA-2018:2576CVE reference · vendor-advisory, x_refsource_REDHAT
RHSA-2018:2253CVE reference · vendor-advisory, x_refsource_REDHAT
RHSA-2018:2568CVE reference · vendor-advisory, x_refsource_REDHAT
RHSA-2018:2569CVE reference · vendor-advisory, x_refsource_REDHAT
RHSA-2018:2712CVE reference · vendor-advisory, x_refsource_REDHAT
RHSA-2018:3008CVE reference · vendor-advisory, x_refsource_REDHAT
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03882en_usCVE reference · x_refsource_CONFIRM
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03928en_usCVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

Oracle CorporationJavaJava SE: 6u191, 7u181, 8u172, 10.0.1; Java SE Embedded: 8u171Listed

Weakness

CWE details

No CWE listed

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