schreibfaul1 ESP32-audioI2S 3.4.5 ID3v2 SYLT synchronized lyrics parser src/Audio.cpp buffer overflow

Summaryinfo

A vulnerability categorized as critical has been discovered in schreibfaul1 ESP32-audioI2S 3.4.5. This affects an unknown function of the file src/Audio.cpp of the component ID3v2 SYLT synchronized lyrics parser. Such manipulation leads to buffer overflow. This vulnerability is referenced as CVE-2026-51274. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in schreibfaul1 ESP32-audioI2S 3.4.5. It has been rated as critical. Affected by this issue is an unknown functionality of the file src/Audio.cpp of the component ID3v2 SYLT synchronized lyrics parser. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-51274 since 06/07/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/28/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• schreibfaul1

Name

• ESP32-audioI2S

Version

• 3.4.5

Website

• Product: https://github.com/schreibfaul1/ESP32-audioI2S/

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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