CVE-2021-28136
Published: 07 September 2021
Summary
CVE-2021-28136 is a medium-severity Out-of-bounds Write (CWE-787) vulnerability in Espressif Esp-Idf. Its CVSS base score is 6.5 (Medium).
Operationally, ranked in the top 42.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-14835
Vulnerability details
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)…
more
in ESP32 via a replayed (duplicated) LMP packet.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.