CVE-1999-1262: n/a vulnerability

CVE-1999-1262: Java in Netscape 4.5 does not properly restrict applets from connecting to other hosts besides the one from...

Java in Netscape 4.5 does not properly restrict applets from connecting to other hosts besides the one from which the applet was loaded, which violates the Java security model and could allow remote attackers to conduct unauthorized activities.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 1, 2024, 17:11 UTC (UTC+00:00)

Security readout for executives and security teams

This old CVE concerns Java applets in Netscape 4.5 being able to connect to hosts beyond the applet’s origin. That breaks the Java sandbox expectation and could let a malicious applet perform unauthorized network activity from a user’s browser context. Exposure appears limited to environments still using Netscape 4.5 Java applets or preserving legacy browsing workflows. The source bundle does not identify supported affected products, CPEs, versions beyond Netscape 4.5, or affected server-side software. Treat this as a legacy-technology risk, not a broad modern emergency. Prioritize confirmation during asset hygiene or legacy application review, and remediate if Netscape 4.5 or Java applet workflows remain in use. Mitigation focus: Inventory legacy systems for Netscape 4.5 and Java applet use.; Check archived vendor guidance; no patch is named in the provided sources.; Retire affected legacy browser workflows where business operations allow..

Prepared: Jul 1, 2026, 08:03 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

Conservative CVE-to-ATT&CK context

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CVE-1999-1262 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 9, 2002, 05:00 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

2Source 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
java-socket-open(1727)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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