CVE Watch28 jul 2026

CVE-2026-51266

schreibfaul1 ESP32-audioI2S 3.4.5 has a heap-based buffer overflow vulnerability in the HTTP request header construction logic. The applicat

CVSS

9.8

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

schreibfaul1 ESP32-audioI2S 3.4.5 has a heap-based buffer overflow vulnerability in the HTTP request header construction logic. The application dynamically splices attacker-controlled host name, path, query string, and multiple HTTP header fields into a fixed ps_ptr heap buffer without proper size limitation and boundary validation. Remote attackers can use an oversized crafted network request parameter to trigger out-of-bounds heap write, leading to arbitrary code execution.

Referencias oficiales

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