CVE-2020-36478

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.10% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 65.4% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-08-23 00:00Z5 YR AGO

Last updated

2024-08-04 17:30Z2 YR AGO

Reserved

2021-08-23

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-295Improper Certificate ValidationBase

Data version

5.1

Document digest

303eaee5312ada17a5616739e5f01180e31375cab037ab1f9c9cc5192ad8bc54

• github.comhttps://github.com/ARMmbed/mbedtls/releases/tag/v2.25.0
• github.comhttps://github.com/ARMmbed/mbedtls/releases/tag/v2.16.9
• github.comhttps://github.com/ARMmbed/mbedtls/releases/tag/v2.7.18
• github.comhttps://github.com/ARMmbed/mbedtls/issues/3629
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-756638.pdf
• lists.debian.org[debian-lts-announce] 20211123 [SECURITY] [DLA 2826-1] mbedtls security updatehttps://lists.debian.org/debian-lts-announce/2021/11/msg00021.htmlmailing-list
• lists.debian.org[debian-lts-announce] 20221225 [SECURITY] [DLA 3249-1] mbedtls security updatehttps://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlmailing-list