CVE-2026-51263

UNKNOWN 0.0

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

schreibfaul1 ESP32-audioI2S 3.4.5 is vulnerable to Buffer Overflow. The Audio::openai_speech function in the Audio library manually constructs JSON request bodies and HTTP request headers by directly concatenating externally controllable input and instructions strings without effective length restriction and boundary validation. An unauthenticated remote attacker can send oversized malicious string data to trigger a heap buffer overflow during string splicing, resulting in memory corruption.

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-2026-51263