PT-2026-65508 · Undefined · Undefined

CVE-2026-51267 · Published 2026-07-28 · Updated 2026-07-28

NVD

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

schreibfaul1 ESP32-audioI2S 3.4.5 has a heap-based buffer overflow vulnerability in the URL path concatenation and encoding module. The application splices untrusted extension path and attacker-controlled query string into a path buffer, then invokes urlencode without validating the final string length. Remote attackers can construct an oversized malicious URL path and query string to trigger out-of-bounds heap write, resulting in arbitrary code execution, information disclosure, service crash, or privilege escalation.

Exploit

Fix

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-51267

Affected Products

Undefined

References · 3

• 🔥 https://github.com/programmervuln/cveadvisory-/blob/main/CVE-2026-51267 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-51267 · Security Note
• https://github.com/schreibfaul1/ESP32-audioI2S/blob/master/src/Audio.cpp · Note