CVE Watch28 jul 2026

CVE-2026-51271

In schreibfaul1 ESP32-audioI2S 3.4.5, a heap-based buffer overflow vulnerability exists in the WAV header parsing function read_WAV_Header()

CVSS

9.6

Crítico

EPSS

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KEV

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Exploit Today

0-100

Publicado: 28 jul 2026 · Última mod.: 28 jul 2026 · CWE-122

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

In schreibfaul1 ESP32-audioI2S 3.4.5, a heap-based buffer overflow vulnerability exists in the WAV header parsing function read_WAV_Header(). The function reads untrusted chunk size and bytes-to-skip value directly from malicious WAV files without reasonable range restriction. Abnormally large bts and headerSize values lead to out-of-bounds heap memory read/write during header parsing, which can be exploited to execute arbitrary code, disclose sensitive information, cause denial of service or escalate privileges.

Referencias oficiales

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