CVE-2026-51261

UNKNOWN 0.0

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

Missing mutex synchronization in AudioBuffer::freeSpace() in schreibfaul1 ESP32-audioI2S 3.4.5 creates a race condition between concurrent tasks. The function calculates available buffer space without protecting shared read/write pointers, returning an incorrectly large value. Trusting this value leads to heap out-of-bounds write, memory corruption, device crash, and arbitrary code execution.

Vendor	n/a
Product	n/a
Published	Jul 28, 2026
Last Updated	Jul 28, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/schreibfaul1/ESP32-audioI2S/blob/master/src/Audio.cpp github.com: https://github.com/programmervuln/cveadvisory-/blob/main/CVE-2026-51261