CVE-2026-51260

CRITICAL

ESP32-audioI2S 3.4.5 - Remote Heap Buffer Overflow via Unsafe memcpy in AudioBuffer::writeSpace

Title source: llm
STIX 2.1

Description

Unsafe fixed-size memcpy operation in AudioBuffer::writeSpace() of schreibfaul1 ESP32-audioI2S 3.4.5 allows remote heap buffer overflow. The code copies a full UINT16_MAX bytes without validating destination available space, causing out-of-bounds memory write.

References (2)

Core 2

Scores

CVSS v3 9.4
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-122
Status published
Published Jul 28, 2026
Tracked Since Jul 28, 2026