CVE-2000-0563

CRITICAL

The URLConnection function in MacOS Runtime Java (MRJ) 2.1 and earlier and the Microsoft virtual machine (VM) for MacOS allows a malicious web site operator to connect to arbitrary hosts using a HT...

Affects 1 product across 1 vendor.

CVSS 2.010.0
EPSS2.6%
Percentile85th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 2000. A critical vulnerability affects Apple systems (CVE-2000-0563). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2000-GLOBAL-308854-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2000-0563?
This vulnerability was disclosed in 2000. A critical vulnerability affects Apple systems (CVE-2000-0563). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2000-0563?
CVE-2000-0563 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 2.6%.
Is CVE-2000-0563 actively exploited?
No confirmed active exploitation of CVE-2000-0563 as of 2026-09-25.
How do I remediate CVE-2000-0563?
Priority: MEDIUM. PSIRT: [email protected]
What systems are affected by CVE-2000-0563?
CVE-2000-0563 affects Apple Mac Os Runtime For Java.
Vulnerability Details
CVE IDCVE-2000-0563
BSIDBS-2000-GLOBAL-308854-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published2000-10-20
Last Modified2026-06-16
ICS Relevance0%
SourceNVD
Official Description

The URLConnection function in MacOS Runtime Java (MRJ) 2.1 and earlier and the Microsoft virtual machine (VM) for MacOS allows a malicious web site operator to connect to arbitrary hosts using a HTTP redirection, in violation of the Java security model.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: The URLConnection function in MacOS Runtime Java (MRJ) 2.1 and earlier and the Microsoft virtual machine (VM) for MacOS allows a malicious web site operator to connect to arbitrary hosts using a HTTP redirection, in violation of the Java security model. CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C.

Exploitation Likelihood: LOW

Affected Products
VendorProductAffected Versions
Apple Mac Os Runtime For Java ≤ 2.1
Remediation

No official vendor advisory link on record. See the CVE record →

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 9500 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hash19ba33b09e10e439337123ac29454d3298f1ee5110ec47c879e87e977abb9ca77e4bfd374c5df6cc91e6d69d69dc035f6a137dc68fd75b433cfa80e9d12299a4
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