EUVD-2026-49864
GHSA-p4qc-qhf6-mghm
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from Vendor (mitre) · only source for this CVE.
CVSS VectorVendor: mitre
Lifecycle Timeline
3DescriptionCVE.org
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.
AnalysisAI
Remote code execution in schreibfaul1 ESP32-audioI2S 3.4.5 allows unauthenticated attackers to overflow a heap buffer via crafted HTTP request headers. Public exploit code is available, enabling arbitrary code execution on vulnerable ESP32 devices. No official patch has been released.
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External POC / Exploit Code
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