CVE-2021-43666

Published Mar 24, 2022 CVSS 3.1 · 7.5 High EPSS 2.1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3249-1 mbedtls security update
Debian DLA Debian DLA DLA-4236-1 mbedtls security update
EUVD EUVD EUVD-2021-30578 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.
History
Type Values Removed Values Added
Weaknesses CWE-130
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics epss

{'score': 0.00179}

epss

{'score': 0.00111}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Dec 2, 2025, 8:51 PM
Reserved
Nov 15, 2021, 12:00 AM
Status
Modified
Published
Mar 24, 2022, 6:15 PM
Modified
Jun 17, 2026, 4:11 AM