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Case File

CVE-2021-28136

MEDIUM · CVSS 6.5 EPSS 0.87% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-07 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗
External Security References
dl.packetstormsecurity.net ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-28136
Severity
MEDIUM
CVSS
6.5
EPSS
0.87%

Original NVD Description

The Bluetooth Classic implementation in Espressif ESP-IDF 4.4 and earlier does not properly handle the reception of multiple LMP IO Capability Request packets during the pairing process, allowing attackers in radio range to trigger memory corruption (and consequently a crash) in ESP32 via a replayed (duplicated) LMP packet.