CVE-2021-28136

Source
https://cve.org/CVERecord?id=CVE-2021-28136
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28136.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-28136
Published
2021-09-07T06:15:07.330Z
Modified
2026-04-10T04:31:39.020254Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
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) in ESP32 via a replayed (duplicated) LMP packet.

References

Affected packages

Git / github.com/espressif/esp-idf

Affected ranges

Type
GIT
Repo
https://github.com/espressif/esp-idf
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Database specific
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.4"
        }
    ]
}

Affected versions

v0.*
v0.9
v1.*
v1.0
v2.*
v2.0-rc1
v2.1-rc1
v3.*
v3.0-dev
v3.1-beta1
v3.1-dev
v3.2-beta1
v3.2-dev
v3.3-beta1
v3.3-beta2
v3.3-dev
v4.*
v4.0-dev
v4.1-dev
v4.2-dev
v4.3-beta1
v4.3-dev
v4.4-dev

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28136.json"