CVE-2020-36477

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

0.83% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 55.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:H/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

2189e4f7707961937120a8d0a50e202bca66eeeafafde92616c4535ed1e6f248

• github.comhttps://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0
• github.comhttps://github.com/ARMmbed/mbedtls/issues/3498
• security.gentoo.orgGLSA-202301-08https://security.gentoo.org/glsa/202301-08vendor-advisory