Security readout for executives and security teams
A very old flaw in Yamaha's MidiPlug browser plugin let a malicious web page crash the plugin or potentially run code by placing an overly long Text value in an HTML EMBED tag. It only mattered for users who installed the MidiPlug add-on to play MIDI music in the browser. This is a legacy 1999-era issue with no modern business exposure for organizations that no longer run that plugin. Extremely limited today. Exposure required a workstation with Yamaha MidiPlug installed and a browser that still supported NPAPI-style plugins. Modern browsers dropped NPAPI plugin support years ago, so real-world exposure in any current environment is effectively nil unless legacy Windows systems with old Netscape or IE browsers remain in service. Informational only. This 1999 vulnerability affects a discontinued browser plugin that cannot load in modern browsers. No action is warranted unless legacy Windows systems with old Netscape or Internet Explorer remain in use, in which case retire them as part of normal lifecycle hygiene. Mitigation focus: Uninstall Yamaha MidiPlug from any legacy workstations where it may still be present.; Retire or isolate legacy browsers that still support NPAPI plugins.; Consult current Yamaha support guidance before enabling any legacy audio plugins..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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CVE-1999-0946 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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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
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CWE details
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