CVE-2026-87961
High
Description
ESP32-audioI2S versions 3.4.4 through 4.0.0 contain a heap-based out-of-bounds read vulnerability in the read_ID3_Header function due to a shadowed length parameter in ID3 synchronized-lyrics processing. Attackers can craft malicious MP3 files or HTTP audio streams with oversized frame size declarations to read past allocated buffer boundaries, causing device crashes or exposing adjacent heap memory.
SeverityHigh
CVSS7.1
Exploit probability—
ProductESP32-audioI2S
PublishedSep 10, 2026
First seenSep 10, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| schreibfaul1 ESP32-audioI2S | 3.4.4 ≤ v ≤ 4.0.0 | — |
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