CVE-2021-43666
7.5
HIGH
CVSS 3.1
EPSS 0.71%
Description
A Denial of Service vulnerability exists in mbed TLS 3.0.0 and earlier in the mbedtls_pkcs12_derivation function when an input password's length is 0.
How to fix CVE-2021-43666
To remediate CVE-2021-43666, upgrade the affected package to a fixed version below.
- Debian/mbedtls—upgrade to 2.16.9-0.1+deb11u1 or later
Is CVE-2021-43666 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.16.9-0.1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |