Improper Certificate Validation Affecting mbedtls package, versions [,2.24.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.3% (53rd percentile)

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  • Snyk IDSNYK-CONAN-MBEDTLS-10077642
  • published8 May 2025
  • disclosed19 Jul 2021
  • creditUnknown

Introduced: 19 Jul 2021

CVE-2020-36425  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade mbedtls to version 2.24.0 or higher.

Overview

Affected versions of this package are vulnerable to Improper Certificate Validation. An issue was discovered in Arm Mbed TLS before 2.24.0. It incorrectly uses a revocationDate check when deciding whether to honor certificate revocation via a CRL. In some situations, an attacker can exploit this by changing the local clock.

CVSS Base Scores

version 3.1