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CVE-20XX-?

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CVE-1999-0766

9.3 HIGH 7% exploit odds No fix listed Code execution Browser & mail

What it is

The Microsoft Java Virtual Machine allows a malicious Java applet to execute arbitrary commands outside of the sandbox environment.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 7.2% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1999-10-21 04:00 UTC PublishedDisclosed publicly on CVE.org and NVD
1999-11-25 00:00 UTC ReservedThe CVE id was reserved by its CNA
2026-06-16 21:49 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 7.2% in the next 30 days (EPSS).
Severity: 9.3 HIGH (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 1999-10-21 04:00 UTC
Last modified: 2026-06-16 21:49 UTC
Exploit probability: 7.2% · EPSS, next 30 days
Weakness: CWE-16
Record status: Modified

Affected

Microsoft Java Virtual Machine

Attack profile CVSS 2.0 · 9.3

Attack vector: Network
Complexity: Medium
Authentication: None
Confidentiality: Complete
Integrity: Complete
Availability: Complete

Raw vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-1999-0766.md and follow it. Check whether this project is affected by CVE-1999-0766. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record