CVE-2019-2766: Oracle Corporation Java vulnerability

CVE-2019-2766: Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: Networking).

Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: Networking). Supported versions that are affected are Java SE: 7u221, 8u212, 11.0.3 and 12.0.1; Java SE Embedded: 8u211. Difficult to exploit 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 (in Java SE 8), that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.0 Base Score 3.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N).

UnknownCVSS not scoredNot KEV-listedUpdatedOct 1, 2024, 16:43 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2019-2766 is a low-severity Oracle Java Networking flaw that can expose limited Java-accessible data. It is difficult to exploit, requires network access and user interaction, and mainly matters where untrusted Java Web Start applications, Java applets, or API-fed Java services rely on the sandbox for protection. Exposure is most likely on legacy Java clients running sandboxed Web Start applications or Java applets, and on services that pass external data into affected Java Networking APIs. General servers are lower concern unless they run the affected Java versions and reachable code paths. Treat this as a routine remediation item, not an emergency. Prioritize systems that still run legacy Java client technologies or vendor products bundling affected Java. The business risk is limited confidentiality exposure, with no cited evidence of active exploitation. Mitigation focus: Apply Oracle Java CPU fixes or supported distribution updates covering CVE-2019-2766.; Upgrade affected Java SE versions beyond 7u221, 8u212, 11.0.3, and 12.0.1.; Upgrade Java SE Embedded beyond 8u211 where deployed..

Prepared: Jun 6, 2026, 20:22 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 23, 2019, 22:31 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

3Source 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
https://kc.mcafee.com/corporate/index?page=content&id=SB10300CVE reference · x_refsource_CONFIRM
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03977en_usCVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

Oracle CorporationJavaJava SE: 7u221, 8u212, 11.0.3, 12.0.1, Java SE Embedded: 8u211Listed

Weakness

CWE details

No CWE listed

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