CVE-2021-20631

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

0.74% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 52.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/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

2021-03-18 00:56Z5 YR AGO

Last updated

2024-08-03 17:45Z2 YR AGO

Reserved

2020-12-17

Assigning CNA

jpcert

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

84bd05e30cecd4d9ebfd90c2c6d8a48e690d68a55c88941335f7c49366134015

• jvn.jphttps://jvn.jp/en/jp/JVN45797538/index.htmlx_refsource_MISC
• kb.cybozu.supporthttps://kb.cybozu.support/article/36871/x_refsource_MISC