ShellCodeX vulnerability brief
UNASSESSED
Deferred
CVE-2026-51261
Missing mutex synchronization in AudioBuffer::freeSpace() in schreibfaul1 ESP32-audioI2S 3.4.5 creates a race condition between concurrent tasks. The function calculates available buffer space without protecting shared read/write pointers, returning an incorrectly large value. Trusting this value leads to heap out-of-bounds write, memory corruption, device crash, and arbitrary code execution.
Published 28 Jul 2026, 15:17 UTC
Last modified 28 Jul 2026, 16:19 UTC
01
Attack profile
The conditions required to exploit this vulnerability and its potential impact.
Attack vector
Not assessed
Attack complexity
Not assessed
Privileges required
Not assessed
User interaction
Not assessed
Scope
Not assessed
Confidentiality
Not assessed
Integrity
Not assessed
Availability
Not assessed
02
Affected products
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NVD has not published structured affected-product data for this record.
03
Weakness classification
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Weakness classification is still awaiting analysis.
04
Source references
External advisories, patches and technical reports attached to this CVE record.