CVE-2021-43400
9.1
CRITICAL
CVSS 3.1
EPSS 0.17%
Description
An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client disconnects during D-Bus processing of a WriteValue call.
How to fix CVE-2021-43400
To remediate CVE-2021-43400, upgrade the affected package to a fixed version below.
- Debian/bluez—upgrade to 5.55-3.1+deb11u2 or later
Is CVE-2021-43400 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 5.55-3.1+deb11u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |