CVE-2026-51274
Description
In schreibfaul1 ESP32-audioI2S 3.4.5, a heap-based buffer overflow in the ID3v2 SYLT synchronized lyrics parser in audiolib allows remote attackers to cause a denial of service (application crash), information disclosure, or potential arbitrary code execution via a crafted MP3 file. The vulnerability occurs due to missing bounds validation on attacker-controlled frame size and improper memory access during lyric parsing.
Summary dbcve.org
Heap-based buffer overflow in the ID3v2 SYLT synchronized lyrics parser of the ESP32-audioI2S library (v3.4.5). The parser fails to validate bounds on attacker-controlled frame size values from crafted MP3 files, leading to out-of-bounds memory access during lyric parsing.
Mitigation
Implement rigorous bounds validation on frame size fields before memory allocation and access in the SYLT parser; validate that frame sizes do not exceed available buffer space; consider updating to a patched version if available, or disable SYLT parsing as a workaround.