CVE-2026-51259

Description

Unchecked unsigned integer overflow in buffer size calculation in schreibfaul1 ESP32-audioI2S 3.4.5 leads to undersized PSRAM buffer allocation. Subsequent normal audio buffer read and write operations cause heap out-of-bounds access, memory corruption, denial of service, and potential code execution.

CVSS Vector

References

• https://github.com/programmervuln/cveadvisory-/blob/main/CVE-2026-51259
• https://github.com/schreibfaul1/ESP32-audioI2S/blob/master/src/Audio.cpp
• https://github.com/programmervuln/cveadvisory-/blob/main/CVE-2026-51259