EUVD-2026-49859
GHSA-m56j-46f5-p947
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from Vendor (mitre) · only source for this CVE.
CVSS VectorVendor: mitre
Lifecycle Timeline
4DescriptionCVE.org
schreibfaul1 ESP32-audioI2S v3.4.5 has an integer underflow vulnerability in the MP3Decoder::GetBits() function of the MP3 decoder due to unchecked bit reading operations. The lack of validation on the nBits parameter causes the cachedBits counter to underflow to negative values, leading to invalid bit manipulation, incorrect bitstream parsing, application crash, or arbitrary code execution via a specially crafted MP3 file.
AnalysisAI
An integer underflow in the MP3 decoder of ESP32-audioI2S v3.4.5 allows potential arbitrary code execution via a specially crafted MP3 file. The vulnerability, caused by unchecked bit reading operations in the MP3Decoder::GetBits() function, can lead to invalid bit manipulation, application crash, or code execution. Exploitation requires a user to open a malicious MP
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Same weakness CWE-191 – Integer Underflow
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External POC / Exploit Code
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