Advisory severityCritical9.8Vendor: MediumRed Hat Linux Updated

Critical [CVE-2026-58264] Heap-based buffer overrun

This critical-severity Red Hat Linux advisory covers CVE-2026-58264.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-58264 Source published Sep 18, 2026Source updated Sep 18, 2026

VulniPulse record published Oct 8, 2026Record updated Oct 8, 2026

CVE-2026-58264

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Summary

Heap-based buffer overrun. Red Hat rates this moderate (CVSS 9.8).

Weakness: CWE-787.

Affected versions

< 1.1.2
< 2.5.6

Official advisory · high-confidence parse· fetched 3 hours ago·verify at source

Fixed versions

2.5.6

Official advisory · high-confidence parse· fetched 3 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Do not enable the FluidSynth TCP server: do not pass -s, and do not call new_fluid_server(). Do not feed untrusted input to the FluidSynth shell. Applications that only use the synthesizer API are not exposed to this flaw. Where the shell or TCP server is required, upgrade to FluidSynth 2.5.6 or later.

Official advisory · high-confidence parse· fetched 3 hours ago·verify at source

Discussion(0)

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